It would be good to know to reduce the tension on the center pin before the frame was damaged. Maybe that knowledge will help someone here to prevent the damage to their scandium frame. This type of wear can be caused by any power factor round, it's just how many times the cylinder was opened and closed.
You are correct. It has nothing to do with the number of rounds fired, just cycling the cylinder open and closed. It's simple really, just snip a few coils of the center pin spring. It still gives a nice positive lockup, but noticeably easier to open and close the cylinder.