You mean the hand as in the piece on the hammer rotating the cylinder? Well, I've owned single actions long enough I very rarely let down the hammer from half cock, I always cock fulling and ease the hammer down. Yes it is marking the cylinder pretty bad, as well as when cocked fast, the cylinder doesn't rotate far enough to lock up. I switch out the bolt and mainspring from my Uberti Hombre .357 and the cylinder rotates too far foward if cocked fast. I just received this gun yesterday and so far am pretty disappointed. Would a new bolt from VTI fix matters?
~"Speak softly and carry a big stick"~T. Roosevelt