I have a hard tip on one of my shafts and I switch back and forth to see if I can used to it. The thing I like about it is that I can jump the cueball fairly easy with the harder tip - but I can't masse at all. With the softer tip, the exact opposite applies. And honestly, I like masseing more than jumping. I have a jump cue for "proper" jump shots, but for those shots where I want to jump into my object ball and have the cb hop over the edge of a blocking ball, I need the hard tip. But, I don't want to change shafts in the middle of an inning, so I need to make a decision really. heh
I have a kamui black soft on one and the black medium on the other. Pretty big difference in how they play; at least to me.