Beyond which guns are supported, what's the difference between these holsters? My uneducated eyes don't really see much of a difference in the pictures.
Separately, I notice that you're local to me (I'm in the Twin Cities metro area). Given that, I'm curious to know if it would be possible to bring you a gun you don't currently support (Walther P99) in order to have a holster made, or if that's not an option.