I've had my OB2 for about 4 days. This is what I was looking for, and the manufacturers description is spot-on imo.
The hit is firmer, more like a traditional shaft, and doesn't have that over-damped feel. The taper is conical and I'm not quite used to the shaft getting fatter so soon into a stroke but I find that it hasn't caused any issues.
I would recommend this to any SS jointed cueist. Phenolic guys may not like it as much, but if you get a chance I'd say try it.
The only part of my game that I think will really require a lot of practice is curve shots. I'd been getting pretty good at them with my regular Schon shaft, and after a little time I think I'll still be able to pull them off with some degree of accuracy with the OB2. Jumping?? fagetaboutit!