As I have shared before, I have a very slow cloth on my table, and all I have to do is throw them in a rack, place it on the spot, and all the balls touch, no problem at all. When I go to the local pool room, its nigh impossible to keep them together with the fast cloth. Having watched all the breaking at the pro level, with seemingly very few clusters in the nine ball game, I couldn't figure out why there was rarely a cluster. Well, a light bulb moment-It's the cloth.