AK47 red (FH) and yellow (BH) tested yesterday, 1h30 training. The training consisted in games only so I got a good initial grasp of the rubbers .
Quick review (always comparing with MXP and ELS):
I'm probably going to be a bit hard on this rubbers, because of that, let me say that they really are comparable with other european tensors, even though a bit inferior.
So the first thing noticed is less speed (faster than any other rubber I tried at this price range) also there is more difficulty engaging the sponge, I had less margin for error and more brushing is needed.
receive(both): pretty good on push receive, didn't felt any difficulty. Banana flicks on the yellow version (didn't try Red) are little more difficult (comparing with the tibhar rubbers) because of the less catapult and you need to brush more.
Service(both): Good, both of the rubbers. Strong backspin serves, fooled some players with receives on to the net.
Block (Yelow): pretty good too. Passive blocks are tricky (less catapult) but I''ll probably adapt.
Loops: Worse than MXP or EL-S. Less speed, less control.
Even though they are clearly inferior to the tibhar rubbers, I really liked this rubbers and they aren't that inferior. They play pretty good, and amazingly good for the price. I really think that they are more than enough for my level. Any good offensive intermediate player won't need more than this. For advanced players, where anything counts to get that edge on your opponent, it's a different story...
In other words, I don't think I'm going to lose any game because of this rubbers, it will always be because of my technique and laziness.
I'm keeping them and I'm very very happy with the quality/price ratio.