Yup, that;s OK. Saved me $300. By the way I received the Cotton Valstar Harrington and it's such a nice piece and cut significantly more roomy than the A1. Really going to enjoy it. Highly recommend for guys that would take a 48 there's one left.
I find the cuff is tight enough that it holds the sleeve above my wrist. I roll my sleeves if I'm wearing without a jacket and don't if I am, so I've not found value in taking off a half inch to make mine 'perfect'.
My guess is Cosmic Wonder or Unused but that's just a couple I know of, I'm sure there are dozens of options. And yeah BMoron those slip ons are just what I was looking for but settled on black CP's a few weeks ago so dissapoint in myself.