Ya , i think , S2 must be giving that stability needed for the BH and at the same time ability to control the game ,to be in the rally and then use FH to win points,
of course you need more power than a harder rubber esp. mid and long distance,but if you search for that hardness degree i assume you play near the table wit opening loops more on the controlled and safe side.
I found the Acuda S2 the most predictable and stable bh rubber,if it could go a tick harder i would advice 45° Nittaku Factive.
S2 is more on the spinnier side,while the Factive is more on blocking and placement controll oriented.
That are my opinions,but both are predictable and no SPinmonster (but therefore not as unforgiving if you read the spin wrong and have to save bad strokes,slow footwork,etc..) but they are more than capable of producing Spin if you have the technique.
But i guess the Rasanter 42 is harder to play if mistakes happen,cause it has the same Topsheet as the other R series?
Ah sry thought you wee the op,
@amitmnagarwal ,but you play the S2 so maybe you see the Acuda S2 kind of like my impressions.