General 1911 talk

I'm still pretty new to the 1911 world. My Valor hasn't even broke a thousand rounds yet. So I still have a few questions about 'em.

On nearly every custom ordered gun, and a lot of the high price tag guns people have their barrel and bushing cut to be flush with one another, and often have the barrel reverse crowned. I understand the appeal, It's looks pretty nice when you see some Wilsons, Wessons, Nighthawks, Springfields, etc with that reverse cut barrel. It really shows the time and effort put into the gun.