Anyone using the Yasaka Zap Rubber?

Anyone using the Yasaka Zap Rubber? please tell me that is good or not and it works like what kinda rubbers.

There are so many variations of Zap. I have a Zap Biotech on BH of YE for RPB. It has little tack, very grippy and soft. Makes a good control rubber and loops well with good ball feel. I actually like it more than the expensive Mark V XS which is real slow with low throw. That may be due to speed glue on Zap but water glue on Mark V XS. Zap is durable and cheap. It should fit loopers' FH as well. Don't expect high bounce like tensor. Hard to pick a equivalent here. May be normal Mark V.