Keep calm guys it's just a game!
Anyway, yesterday a couple of friends who own more than one gen Rolex, didnt say anything even when they tried it.
Let's say it's almost perfect. It'd be different when you have both gen and rep in your hands.
Yes the winding works differently, I know how they work since I have to gens, and the feeling when you wind this arf is different, I don't know how to explain it, it's just different. Probably, as Maron says, a good service could solve the issue, if it is really an issue. I'll do it soon.
The difference in the shape, if there is a difference, is not so important, you probably realize it just if you have both gen and rep in your hands.
Meanwhile I confirm I like it very much and that's the most important thing!