This is my review of the Yasaka Rakza 7 rubber in the color black, max sponge.
Blade: Stiga Hybrid Wood penhold
Top quality topsheet.
Medium soft sponge in the color white.
Weight is avarage. Not as heavy as chinese rubbers.
The Rakza 7 I would say has a medium throw. Lower than chinese rubbers like the H3 Neo and TG2 Neo but higher than both Rakza 7 Soft and Stiga Boost XT.
Compared to Rakza 7 soft and Stiga Boost XT the sponge is not "bouncy" at all so the throw is therefore really direct. Great throw length. For me it is perfect for my backhand. Also works well on forehand.
Not the fastest rubber on the market, however it provides enough speed to blance the rubbers spin and is a big part of the rubbers exelent control.
It is faster than the H3 neo and TG2 neo on my blade but not as fast as the Stiga Boost XT. However it makes up for it in both spin and control.
 After a few weeks I glued this rubber on an old Banda JO Waldner blade and this blade suits the Rakza rubbers much better. The speed was increased noticably! [/edit]
Good amount of spin thanks to the top quality of the topsheet. The topsheet is a little tacky, it picks up a small amout of dust but not much. Easy to clean.
I love the control of this rubber.
The balance between speed and spin is exelent.
Placing the ball is such fun.
Great value for your money.
Will buy this rubber again.