Gotcha. I'm just curious if you will be able to tell a difference in accuracy. I tried David Tubb's "
Final Finish" bullets on one of my barrels and didn't really notice a change in accuracy.
As far as cleaning, I pretty much stopped cleaning my stainless pistol barrels that I shoot jacketed through a long time ago. Why not, the barrel manufacturer suggests that cleaning may be worse than shooting? LOL. See Wil Schuemann's article here:
http://www.schuemann.com/LinkClick.aspx?fileticket=3zZ4oir3t50%3d&tabid=67&mid=445
I just clean the chamber and the feedramp now and then, followed by pulling a bore snake through to get out any loose stuff from the chamber and have seen no degradation in accuracy that I can tell in lots of rounds. It actually looks pretty "clean" if you look down the bores now.
I think with that revolver you should be shooting 8 shot groups or at least marking and using the exact same 5 chambers for a 5 shot group. Using different ones could, at least theoretically, skew groups one way or the other and provide incorrect results. I have heard of revolvers with some chambers bored slightly off in the cylinder that affected groups. I doubt your Performance Center piece would have that issue, but it is something to think about.
Let us know if it makes a difference that you can tell.