Okay, I want to carry IWB, but when I tried it, I couldn't fasten my pants. I have a Kimber SIS Custom (5 in barrel) and a cheap Ace brand IWB holster I got off CTD. My question is, do I need to be carrying a smaller pistol (I actually plan on this, the Kimber's a little too big IMO), a better holster, or do I need to start buying pants 2 inches larger than I need (I really don't wanna do this...may go with another carry option), or some combination of the above? Thanks.