I've never carried crossdraw.
I've always carried strong side, so I can't help you on the first item. As far as Galco holsters, I can tell you from personal experience that they are good holsters. I currently carry in a Galco Concealable with a Galco single mag pouch and flashlight holster. Good stuff. HOWEVER - They are not custom made stuff. If you get a holster handmade to order you'll do two things. 1) Wait a while for it and 2) Get a very fine holster for not much more money. The real advantage of buying off the shelf stuff is availability.