Why do you want to clean the cylinder face, anyway?
I mean, I wipe it off of any residue or buildup that could potentially rub against the forcing cone or anything; but by using a lead-removing cloth, the way I understand it, you're achieving a shiny face by actually removing metal (the steel of your gun, that is). I'll clean one of my stainless revolvers this well if (god forbid) I should ever have to sell it--but otherwise, I'd feel like I was just wasting effort, since it's gonna get darkened again next time I shoot it--which I will!
CG