By all accounts, it won't be the full-fat FQHH, that stuff doesn't give the correct drape for an A-2. It should be a mid-weight horse, which won't have the same extreme wrinkling and shortening of sleeves. I would avoid tunneling too, it just doesn't do the jacket justice - I handed back a lovely seal A-2 exactly because of this. I think if you're going for one of the slimmer shapes, you probably want to size up. To me, though, the best looking A-2s are the ones that are close-fitting - though as people will tell you around here, there's no such thing as a 'standard fit'. That said, if it's too loose, it can end up looking a bit 'blouson' and you don't want that. My A-2 just drops over the top of the belt of my jeans which suits me fine.