Mystery(?) Rubber ID/Replacement (Friendship 729)

[cruzctrl]

A friend gave me this rubber and I really liked it, but wanted to get more for when this wears out. based on my Googling, it seems to be a very outdated version of the Friendship 729 Cross. Mine says it is 44 degrees and has a blue sponge. With that, can anyone tell me if it is more similar to the Cross or Cross FX? Both have similar descriptions online, but I can't find anywhere that tells me the rubber hardness and there are even two 'Cross' rubbers online (links and photos below). Any help would be appreciated!

TableTennisStore - Cross

TableTennis11 - Cross

TableTennisStore - Cross FX

 

[Haito]

Its often called batwing on the forums.. Its the cheapest 729 rubber, often described as training rubber.

 

[cruzctrl]

Its often called batwing on the forums.. Its the cheapest 729 rubber, often described as training rubber.

Huh, neat! Would buying the current Cross rubbers be an 'upgrade' then?

 

[Haito]

If my memory serves me right should be same as this:

https://pl.aliexpress.com/item/1005006630917504.html

 

[Haito]

Huh, neat! Would buying the current Cross rubbers be an 'upgrade' then?

Its about the same.

 

[ajtatosmano2]

A defender in our club plays with this, it's a surpsisingly usable rubber. I would glue this on beginner rackets.

 

[Tyce]

It might be useful to show the rubber itself to compare the markings to the LARC

 

[Haito]

It might be useful to show the rubber itself to compare the markings to the LARC

Batwings are not on LARC, they do not have LARC number.

 

[Tyce]

Batwings are not on LARC, they do not have LARC number.
View attachment 43157

Oh that's just the ritc entry which is grandfathered into the list. This is legal use

 

[Airoc]

grandfathered into the list.

Excellent

 

[Tyce]

Excellent

Basically, if you can find the rubber stamp in the list, it's legal for use whether there's a number on it or not. Some companies keep reusing the old stamps and as long as they don't change the topsheet outside (idk what) parameters, they can.
And rubber stamps from before the numbering scheme, that have been consistently paid fees for, are simply never decommissioned.
I only learned about the term "grandfathered" from looking up 729 Super fx