Medium hard rubber for backhand

[olive-nguyen]

The 2 most populair ones are:
-Rakza 7
-Fastarc G-1

Rakza 7 is a bit more bouncy, but less grippy. Probably easier to play on bh.
Fastarc G-1 is not as bouncy, but has more grip.

So more grip means more spinny, but also more sensitive to spin and vice verca.

As someone using both of those rubbers, just go for fastarc g-1. You can try c-1 if you want softer. S-1 is ok too.