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What? You would bother so I can understand what you are talking about. Because from my perspective, COR tells little valuable information. What should have been addressed 10 years ago?

can you explain how you would one test the normal and horizontal coefficients of restitution of a rubber?

I do suspect that this is might be of the equation. I also think that booster also give the desirable mechanical effect of stretching the topsheet (due to expanded sponge), besides whatever structural effect it has on the sponge (just a guess, I might be wrong). I do wish to know the chemical...

Yes, good points Dominikk.

Just to clarify, when I refer to "hit" I refer to influencing the balls exit velocity. When I refer to 'spin' is the rotation applied to the the ball. In practice, the Magnus effect is experienced purely due to how much brush you apply to the ball, hitting the ball has no noticeable impact on...

I think this is a special shot to change things up and trick the opponent. The lower contact allows a super spinny short topspin ball right over the net which is very difficult to return (both repositioning the feet and dealing with the spin).

>Also, no one has address the radius of the arc of the loop yet. r=v^2/a. It is clear that velocity has much more effect on the radius of the loop than the acceleration due to gravity or the Magnus effect. >Why is everyone ignoring this?Yes r is proportional to v^2, this is common knowledge to...

>Now we are getting to the heart of the matter. What is the definition of a loop. Is any boll with top spin a loop? I don't think so. Is an ball that is hit when there is a light of sight trajectory a loop? I don't think so. >If you know what a loop is then tell us. The Chinese call a loop "la...

> I don't consider what most of you call a loop, a loop. It is just a ball with top spin. What a dumb thing to say, you don't know what my technique looks like. I can assure you I know what a loop is, and I can also assure you that my loop is a real loop. I would also surmise that most people...

Get palio 2 star or 3 star for $13 from AliExpress, shipped to your door in 1 month. cj8000 is great beginner rubber ,I really like the blade to. Comes with a nice case too! If you want the hassle, err fun, of gluing your own setup, get 7 ply wood blade (sanwei fextra $20, pg-7 $20 etc) and...

Awesome. Yeah, there is no educational benefit for you taking AP Chinese, but it does help you pad your "AP stats' for bragging rights 😏. Every 5 counts. Just kidding!

Nice! With your english level, Toefl should be no problem, +1550 on the new SAT should be no problem too (don't mess with unofficial prep books, just do the tests in the official prep book and get a good nights sleep). In American high school, my favorite AP classes were BC Calc and Physics C...

Why? Don't leave me hanging lodro

So just to clarify this new H3 is not in testing or CNT exclusive, but the general topsheet change for the "new" H3?

Tell me more about this slightly tacky H3! I was watching Sun Yingsha in the the world teams, and noticed before the serve she bounced the ball on the H3 like it was a semi tacky rubber. I know it was probably very boosted, but being new H3, I suspected there was more to the equation. Recently...

5-10 hours per month is quite low, the AK-47 should last 6 months. My AK-47 still going strong after a month and 15hr per week. On the aside, I can attest that my fastarc g1 is still grippy after 3 years. Not as much play, but still really impressive longevity, and totally worth the $40 price tag.

Anyone have info on some high ranking players not participating? Such as Lin Yun Ju, sort of surprised he is not playing for Taiwan...

In my opinion, just have a firm grip for the stroke and relax after the stroke. Same for blocking and chopping too. Pushing can use a soft hand for absorbing push, or firm for active push. For flicking or flipping, I 'load up' and then 'release' the tension like throwing a frisbee.

Thankfully I have yet to run into a bad H3, comm or prov. Patrick (pingpongprof) also did a booster test with 6 H3 Comm and notes that the consistency was quite good. But I suppose their QC has improved over the years.

Wow, that's interesting. I got regular H3 about two month ago from TT11, tacky as usual. Thats interesting that this "new" H3 Neo is half tacky. That seems a big enough change to warrant a new name.