I tried several on both blades. I liked harder Chinese rubbers on W968 more on the FH side like the LAC, boosted H3N and Dingtian. I didn't like Rakza Z EH so much.
On the Zhou Qihao I tried H8-80, Tibhar K2, Rakza Z EH, H3N for longer periods of time. H3N wasn't my favorite but the others were...