Hi Chris and a very warm welcome to the forum.
I'm far from being expert in things PCP related. What I can say, though, is that an attendee at the last Boinger Bash brought his new R12 along. It's a thing of beauty in terms of looks, execution, balance, finish etc. And very slick in use, too. And extremely accurate. He used it pretty extensively over the weekend and has been getting plenty of use from it both before the weekend and afterwards. Totally reliable and he's loving it. Obviously not the definitive "buyer's guide", but boding well, I thought.......