Tried Hurricane 3, V>22, V>15, G1, Korea, O7Pro, V>20, Z2, Dignics 05, Jekyll & Hyde V47.5. The best backhand rubber I used was V>15, O7Pro, and Dignics 05.
V>15's a bit heavy though but it comes in blue, and O7Pro is very light but only comes in black or red.
Dignics is self-explanatory.