Boy, do I disagree with the first review of this rubber; Placed on a fast blade (Hallmark Ultra), I am able to get great torque (and speed) on my loops (even on my (rare) mid-distance shots), excellent spin on serves and pushes, and can execute a suprisingly good flat hit;
And I think one shouldn't discount 'sound'... it's fun to have and lets you know when you've made a good contact... and this rubber has really great sound with no glue;
Also, it doesn't have that strange feel (esp near the net) that some speed-glue-built-in (ie. tension) rubbers have; Rather, it feels like glued rubber... with both spring and touch at the same time;
True, it's quite light... but I consider than an advantage rather than a disadvantage;
My favorite rubber ever (so far);