Well I trimmed it up a bit, and added some belt loops. The belt loops aren't the best but they work for the time being, will be running it this weekend and see how it works. Only problem is that it's a bit tough to get in and out of the holster. Not sure if that will be easier as it is used more or not.
Sounds like you might need to relax the definition in some areas that are binding the most. Use a heat gun for that. Ejection port is one of the big culprits. Also if you're having an issue reholstering you might want to flare the top a little. It also doesn't look like you have a good front sight channel.
If you're worried about messing up your gun too, Botach has good prices on Blue Guns. I'm not sure of the quality if their exactly 1:1 in every single aspect, you'd have to do some research on your own for that.