I don't think so PN..I could be wrong but I don't know that they've been altered at all...that's why I'm wondering if you can spec the cuff circumference. This jacket has sleeves like a vintage Brooks...the difference is (as y'all know) this leather doesn't give like the vintage ones do.I wouldn't have noticed the sleeves being tight if you didn't highlight it, it's a great fit other wise.
I'd say it's worth giving buttes idea a try.
The upper sleeve on this model is usually pretty baggy, have they been slimmed down too? Hard to tell from the angle of the pics.