Does anybody have one of these? How accurate is it? They are a Performance center enhancement of the 4513. Are they worth the premium? How about the Briley bushing, I've read that they are very hard to assemble/ reassemble with the bushing. These are fairly expensive pistols, IMHO. I've purchased PC revolvers in the past, and not been thrilled in the level of performance, over standard production models. This would be a carry gun, replacing a 4516-3. Is it reliable/durable enough to do so? How about shooting 3-4000 rounds per year through it? Thanks. Regards 18DAI.