SpinSight users post your experience and reviews

[Oliverpool]

How sure are you about that though? I certainly have a waaaaay easier time blocking 110s level loops than 120's, and that's in a practice setting so placement doesn't come into play. I mean, obviously placement is very important too, but I wouldn't underestimate the difference of say 10% in spin.

I'm actually wondering if we're misinterpreting the data. Many seem to think we're overestimating the differences between equipment, I wonder if we're actually underestimating what a few percentage differences in speed and spin does to our game?

I subscribe to this thought that spin matters.

When we play with some players and block their forehand loops, you can feel the vibration of the spin on your blade. These players are usually the hardest to play against. Their spin means there shots are more
Consistently landing on the table and it kicks or dives and you can easily be deceive by the spin on a slower ball in game tense moments blocking off the table

 

[Zezima]

Still wondering, what is meant here.

Is the 5% for each measurement? Meaning if I consistantly hit for 100 rps, I get sometime 95 and sometimes 105. In the same setup? That would be strange and would not match what the video posted has shown. The measurements there in the same setup were pretty consistent.

I would assume that the +-5% is for different measurement setups. Let's assume you setup the measurement, do your rounds then dismount and come back the next day for another measurement and setup the whole thing again. For this scenario the differences sound reasonable to me.

that would make no sense. Why would it change by 5% on another day? Even if that would be the case its bad cuz next time you will think oh wow now I got 5% worse or I got 5% better when in reality its not the case?

Maybe we can get more info this.

 

[songdavid98]

that would make no sense. Why would it change by 5% on another day? Even if that would be the case its bad cuz next time you will think oh wow now I got 5% worse or I got 5% better when in reality its not the case?

Maybe we can get more info this.

Read carefully.

Camera placement, lighting, iphone camera type.

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I’ve used someone else’s spinsight a little while ago and found that if the camera sees another table, it becomes a lot worse. Better to make sure you pick a table and camera spot where the camera only sees your table.

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I’ve bought a 24 pack of spinsight balls so I’ll do extensive testing next week.
But from what I can tell about myself and my worn out rubbers, I was able to hit 130+ rps loop against a 50+ rps push. And serve 60 rps backspin.

Other players around me struggled to even get close. Against 50+ rps push, loops were ~100 rps. Backspin serves were ~40 rps.

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The players that were beginning to learn backspin serves were getting ~20-30 rps.
What players thought were their 'no spin' serves ended up being about ~10-15 rps backspin.
Normal pushes are generally under 40 rps. Lower level players easily lose control when trying to push above 50 rps.

Spinsight is very revealing. Finally I can use a tool with a student and say "the expected range of spin for this is between X and Y, and you are above/below it". Or say "you are within the expected range, no need to go even further beyond or else you lose control"

And now they can't argue (they would argue all the time)

 

[dingyibvs]

How can you say that? Because spinsight has a errror tolerance of +-5%?

also if your opp gets to hit a 120 rps topspin even if you happen to block one he will mostlikely win the game anyway.

Also there is a different value I believe it was called spin factor. But again we are in early stages to interpret data in terms of what actually matters the most.

Because it's not just one shot, we all did many, many shots. Maybe individual shots can have some variations in measurement, but over a large number of shots the experience is quite consistent.

 

[pong99]

Even on shot to shot data over time, there will be variation.

New balls are not identical. They will vary in weight, circumference, roundness, etc. Has anyone compared an old ball versus a new one?

There's vibration from the floor from players to the camera mount. We've all see video from someone who set up a tripod to record their matches where the camera shakes. Vibration not noticeable to the naked eye can affect the reading. Is the mount to the net post more accurate than a stand alone tripod? Unknown.

There could be other variables throughout the day like lighting, air conditioning, humidity, more/less people playing at the club causing vibrations, etc.

 

[v100ev]

So finally got to use the Spinsight today with my friends
It was interesting. Next time I'll definitely do a skill test in the App, but today we just tried a lot of stuff at random.
So my FH loop against block peaked at 134 rps, and against a weak push (not a high one, just a normal non-aggressive push) I was able to grunt a couple of kill shots with 142 rps.. And I was very happy with these results. Funnily enough my BH (with the regular rubber) also peaked at 134 rps against block 😅
Serves - I could not get more than 51 rps on my short under/side-under serve. Somehow the reverse pendulum had more rps - 54-55. Speedwise both were 12-14 km/h. My fast long serve was 30 km/h.. Sounds slow, but somehow feels fast
I also tried a friend's racket for serves to compare - it's a Diode V with a Victas Extra rubber.. Pretty much got the same results in terms of spin.
The other guys got way less in the topspin department (but we already expected that as we know our shot quality quite well, so we knew who would be better at what and all, but still - having a number to confirm stuff is nice.). In terms of serves we got pretty similar results, one of my friend had always better rps in his serves, but they are not so tight near the net or low. So we discussed this also, as obviously rps and speed are not everything.
Basically an interesting first experience. Will see when I try it again (I am a proud owner now) as this actually needs for a person to go and work on specific stuff, and it's not the usual training/having fun thing. It's more goal-oriented I would say.

 

[Spinsight]

So finally got to use the Spinsight today with my friends
It was interesting. Next time I'll definitely do a skill test in the App, but today we just tried a lot of stuff at random.
So my FH loop against block peaked at 134 rps, and against a weak push (not a high one, just a normal non-aggressive push) I was able to grunt a couple of kill shots with 142 rps.. And I was very happy with these results. Funnily enough my BH (with the regular rubber) also peaked at 134 rps against block 😅
Serves - I could not get more than 51 rps on my short under/side-under serve. Somehow the reverse pendulum had more rps - 54-55. Speedwise both were 12-14 km/h. My fast long serve was 30 km/h.. Sounds slow, but somehow feels fast
I also tried a friend's racket for serves to compare - it's a Diode V with a Victas Extra rubber.. Pretty much got the same results in terms of spin.
The other guys got way less in the topspin department (but we already expected that as we know our shot quality quite well, so we knew who would be better at what and all, but still - having a number to confirm stuff is nice.). In terms of serves we got pretty similar results, one of my friend had always better rps in his serves, but they are not so tight near the net or low. So we discussed this also, as obviously rps and speed are not everything.
Basically an interesting first experience. Will see when I try it again (I am a proud owner now) as this actually needs for a person to go and work on specific stuff, and it's not the usual training/having fun thing. It's more goal-oriented I would say.

Great to hear you’re enjoying Spinsight!

 

[Spinsight]

Hi everyone,

Thanks for all the feedback so far. If you have any more either positive or negative we’d love to hear it so we know what we need to work on and improve.

Also any technical questions please let us know and we’d be happy to answer.

Cheers!

 

[songdavid98]

I've noticed that if there is another table surface partially visible in camera view, the spinsight no longer tracks the ball well.

Is that something your developers can fix?

 

[Dr Evil]

Can you display spin to speed ratio on your app?

 

[blahness]

How sure are you about that though? I certainly have a waaaaay easier time blocking 110s level loops than 120's, and that's in a practice setting so placement doesn't come into play. I mean, obviously placement is very important too, but I wouldn't underestimate the difference of say 10% in spin.

I'm actually wondering if we're misinterpreting the data. Many seem to think we're overestimating the differences between equipment, I wonder if we're actually underestimating what a few percentage differences in speed and spin does to our game?

The answer could be straightforward. The Magnus effect (ie downwards force on the ball from the ball spin) is proportional to the square of the velocity. So an extra 10% in spin is an extra 21% in the Magnus effect which makes the incoming trajectory deviate further from the "normal" trajectory.

Furthermore, rotational energy on the ball (which controls how the racket reacts to the incoming spin), is also proportional to the square of the velocity. So the 10% spinnier ball has 21% additional rotational energy.

 

[songdavid98]

If I want to subscribe to a player pro membership, I'd have to do it on my phone's spinsight app where I get redirected to my phone's browser to stripe.checkout.com .

Is there no way to log in and pay for player pro membership from my computer?
Also are there any promo codes you can share?

 

[rairden]

What is the spin icon which is a semicircle arrow? It's two colors dark blue and magenta. Is that corkscrew? The docs or website doesnt mention that icon.

 

[Deep74]

Hi everyone,

Thanks for all the feedback so far. If you have any more either positive or negative we’d love to hear it so we know what we need to work on and improve.

Also any technical questions please let us know and we’d be happy to answer.

Cheers!

When will it be available in the uk?

 

[ML fan]

Hopefully, spinsight will also record the blades and rubbers of users and create a data of RPS of each blade and rubbers like REVSPIN's data, of revspin based on opinions, spinsight will be based on the actual performace recorded.

 

[Fruitlover]

Did somebody test the influence of the blade and the sponge thickness on the spin?

 

[jk1980]

Less spin on looping between 5ply wood acoustic to w968 inner with same rubbers, but that is to be expected

 

[Fruitlover]

How big was the difference (%)? Interesting would be the influence of the top layer (more spin with hinoki?), the core (less spin with balsa core?) and the influence of the fiber. If you compare totally different blades it is hard to draw conclusions.

 

[dingyibvs]

How big was the difference (%)? Interesting would be the influence of the top layer (more spin with hinoki?), the core (less spin with balsa core?) and the influence of the fiber. If you compare totally different blades it is hard to draw conclusions.

The biggest difference I've seen so far is maybe like ~5% between freshly boosted H3 and a dead sheet of H3 in terms of spin. Otherwise with all sorts of combos the difference has been neglible at the top end. With some equipment it's easier to reach a higher level of speed/spin, but once I commit 80-90% power just about all equipment generated a similar amount of speed and spin.

 

[Fruitlover]

The biggest difference I've seen so far is maybe like ~5% between freshly boosted H3 and a dead sheet of H3 in terms of spin. Otherwise with all sorts of combos the difference has been neglible at the top end. With some equipment it's easier to reach a higher level of speed/spin, but once I commit 80-90% power just about all equipment generated a similar amount of speed and spin.

In case of more or less perfect contact (e .g. powerlooping fast balls) there is no difference in spin with different material, but you can compare serves, pushes etc. with different material, too.