I heard from someone who wasn't pitching them or sponsored, that they were a bit better than the 2's.
I used one a couple times ,but not long enough to give a accurate opinion of the 3-it looks cool , I have a 2 with a white diamond tip(made a world of difference) and am very happy.
I could put a regular tip on it and use it as a player, I have broke and ran lots of racks with it, with the factory tip and even better the white diamond. I wouldn't bet a dollar with those tips cause you can't go far off center or you'll miscue.
I really am happy with the bk2 I doubt I change for a very long time