I've used it for my FH in max thickness and the speed is a little bit less than Sriver FX in theory. (mine was faster, maybe the blade had something to do with it)
What I loved about this rubber is the grip, perfect for hard chops at any distance from the table, only experienced players with proper techique will rise those chops. The serves are easier to do since its low speed and high tackiness would allow you to perform serves with extreme spin without having the trouble of a long serve. You can do decent topspins with it but they won't be super fast.
This rubber is for medium level players to play with and against, it's durable, tacky and reliable, but won't be popular with the offensive players.
Product information
