I was going to shave with my 1911 single ring this weekend (for King Gillette weekend) but noticed when the handle was properly snugged on a Personna med prep, I could grab the blade by the end tabs and wiggle it rather easily. Rather than cut a shim I went ahead and used my NEW SC instead. It's just something that probably always was the case but I just noticed it now.
I attribute this to the .004" thickness of today's blades versus the .006" thickness of the original 3 hole carbon steel blades. Next weekend I'll have it shimmed up snugly for the shave.
Hm, Lane, I've also been doing the one-blade thing, after buying 1K of the Dorco Prime Platinums ... These blades are somewhat thicker than most, though I have no micrometer to prove it. My belief is due to them making almost no noise in a 46-47' Aristocrat, one (normally) loud razor. Anyways.
If they ARE thicker, they are ideal in an OLD, then.
AA