Very good question.
I usually play on 3 different tables with different cloth. Lately I've been experimenting a little: For the fast moving Simonis cloth, I use my Schon, Joss or Shurtz cues with factory shafts. For slow moving cloth tables, I use the same butts but screw on the OB-1. Reason: the OB-1 gives me more spin and movement with the cue ball. And since the cloth is slower, this helps me move around the CB. I can move the CB will less effort with the OB-1. On the Simonis, the factory shafts with factory tips move the cue ball just fine.
jed