I've used predator for years.
A 314-2 for the last several years.
I purchased a 314-6 model Predator cue in superb condition with original Pre-Cat shaft/moori tip. It plays great, but I must say that I like the 314-2 shaft better. In fact, I just got off the phone from ordering a 314-2 w/ moori for this cue.
I don't like the Z shaft because it is just too skinny for me. I jar everything, LOL.
I owned an OB1 and, well,...didn't like it as well as the Predator. Now, I could definitely get used to it and play with it, but since I can buy a Predator 314-2, I stick with that.
They're both great companies that make good products and I think you could get used to and enjoy either one.