butterfly tenergy

Many people ask What is the throw angle of tenergy butterfly? Well throw angle depends on the spin which related to the density.  You can estimate tenergy sponge rubber mass thanks to Daniel Tan's database.  Others ask Is Tenergy too advanced? because they have trouble Looping Heavy Underspin with Tenergy.  But you can change the thickness of the sponge because you just need to ask What is the difference between Tenergy 1.7 1.9 2.1?  Well that is different for everyone.  You should think Which Butterfly Tenergy thickness is best for your game?  I wouldn't go to thin because tenergy is nothing without spring sponge.  If you go to thick then weight of tenergy rubber may become an issue.