I carry a glock 19 gen4. (Took a pistol class with it today actually)
Holster I have a jm custom kydex which happens to be a local and really good dude( taking a 2 day class with this weekend)
I also have another custom hybrid holster which is basically a cross breed holster.
Remember a good belt is just as important as holster. It needs to be stiff to help disperse the weight.
I would recommend only carrying one of your guns and being proficient with it so you can manipulate it like a boss if you ever have to use it to save your life. Just a thought...