Reviews by shinhyun

I'm an intermediate player, sriver is excellent ! After testing tenergy and others last generation rubber, I finally ends up with sriver ! Good allround rubber, not as fast or spinny like tensor rubber but has more control, more dwell Time, more controlled shots, less bounciness than tensor ! You have to put your own power to generate the speed and spin, which is good to develop your strengh and techniques.
No boost and speed glue needed.
I pair it with a allround+ blade and I can still play powerful shot far from table

Butterfly Rozena (44.9€) (21/04/17)
Cheaper than Tenergy, but more expensive than most other tensor rubbers (with some "price reduction" in France for exemple)

Speed : it is fast (isn't for beginner at all !) little bit faster than t05fx
Spin : the spin is good but not like t05/t05fx which is spinner (more speed than 05fx but less spin because of the speed)
Control : good control, 35 degree is great, the ball is fast and spinny but is "linear", it doesnt make any weird trajectory
Weight : between t05fx and t80
Hardness : between t05fx and t80, it has a harder sponge than 05fx but a more elastic topsheet than 05fx like a 80 but the overall is quite the same
throw angle : medium/medium high (lower than t05/t05fx like the 80/80fx
durability : seems to be good like tenergy

special points : good for counter topspin because of a softer sponge like t05fx, also good for blocking

Conclusion : very good rubber ! Like a mini tenergy but with lower price ! Not for beginner, it isn't so forgiving

Very comfortable blade (st handle), nice speed, nice stability and very balanced, this blade will optimized your rubbers. High quality blade. Worth your money.