I guess maybe it wasn't so bad in SoulCalibur V, because I don't remember it being so pronounced. It's been a long time since I've played SoulCalibur IV, and I may not have made many if any female Mitsurugis back then, I can't really rightly remember.
This is true, and even though they made it less feminine, they didn't really make it super masculine either. I made many an Alpha Patroklos female custom character, and they never seemed out of place or unnatural. If we really aren't getting Amy back, I want Raphael to step his game up. It makes sense, too, since it was him who taught her how to fight in the first place. She had to get her moves from somewhere!
A few of Amy's more ballerinaesque moves don't quite look right on a male, either, and like Sophitia, a few leg bends here and there. Trying to make Hwang in SoulCalibur V was the worst, though. I understand why the Quick Battle version used Devil Jin. He's just not right using Leixia's style... sooo much wrong there.