I recently took possession of the same gun in the OP. First thing, I added the 500 S&W Hogue's. The bone at the base of my thumb takes a pounding with all uncovered basckstraps. I have the Hogue 500s on all my round butt S&Ws.
I'm getting quite a few misfires (at least one every other cylinder) when not using mood clips. I will admit, this is with reloads, and a lot of old and mixed brass. I fully tightened the strain screw which helped but did not eliminate the problem. I can get the light hit cartridge to fire by moving it to a different cyl chamber and firing the gun single action. I'm thinking that I have one or two chambers that are a bit "deep". Max spec cyl chambers with min spec cases is probably the cause these misfires. I do have a Cyl and Slide Shop long firing pin, but haven't tried it yet. It caused a whole new set of problems on a different gun.
I'm also unimpressed with both single and double action pulls on this "Performance Center" gun. The single action in particular is both heavy and has two stages.
I'll get both issues worked out eventually, but would have thought that a Performance Center gun would have had better QA/QC.
I do have another Performance Center gun, a 629 light hunter and I couldn't be happier with that gun.
FWIW,
Paul