Actually, I found getting the shoulder rig to work right on V3 was a bit tricky. Then to get it to work under a jacket, was a problem, because of the way the jp settings work when the arms are at the side. Came up with a working solution, but had to scratch my head a bit. My guess, this is the kinds of things Steve is refering to. You can not just conform or parent it to the chest, cause of the way the collars work. Well, you can, but raise or lower the arms, and you have all sorts of probs with poke thru and deforming, etc. Stick a prop gun in the hoslter and try to get it to move as the figure/shoulder holster moves. Again, it was a real pain in the butt to do, and get to work right.