After a bunch of squatting and lunging up the stairs, I'm here to report back that Mike was right: Cramertons have indeed stretched out a whole lot. Sizing up would have been a mistake. Top block is now very close to my other rivets in the same size if not ever so slightly slimmer (could have more to stretch). They taper more aggressively though (which I like), presumably since the top block stretches out more than the bottom half.
2/29/16 at 12:07pm