I have one. 5" pin-up with cg kicked right about 50*, over the bridge.
I was very skeptical at first because everyone said it was stronger than the GB2. I don't have a GB2, but from what I had seen of the GB2, it reminded me a lot of the Vintage Johnny Petraglia, so just how much stronger......hmmm.
Anyway I was pleasantly surprised with this piece. Smooth downlane, definitely a benchmark ball. Depending on my release I can get a smooth, blended arc, or an angular hook-set look! It responds very well to hand release changes.
It also carries pretty well. It has increasingly been moving up the ladder in my bag, so much so that I will probably purchase another!