This is the most recently used rubber is the backhand TENZONE ULTRA. The forehand rubber I use now is Adidas Syntac. The spin and control on this rubber is much better than all previous ones. I would recommend this rubber to everyone. This is even better then the old backhand rubber I used, Butterfly's TENERGY rubber, Adidas R4, Donic BLUEFIRE, and Donic ACUDA. This is so far the best rubber I used in a lifetime.
P.S On 2011 October 22, Taiwan's Adidas table tennis association sponsored me to use their ping pong supplies. Theses few years, the backhand rubber I use is Adidas R4 rubber. At that time, only I had that shoe in Asia. Now, they are going to give me new stuff. It is going to shipped soon. And also, I going to be shipped a recently researched new type of rubber: