Dang, 8.5 would've been perfect for me and you snagged them! Or do you mean you usually wear 8.5 and you bought 9? Last I had checked (a few weeks ago, admittedly) it was only 9 and 7 or 7.5 left.
I might not be much help as I've never actually worn Alden or Carmina. I'm sort of between an 8.5E and 9E in most Allen Edmonds lasts, FWIW.
I'm an 8.5d in Allen Edmonds strands. If these don't work for me, I'll be sure to let you know. I bought 8.5