I did a search and can't find an answer. I want to buy my first IWB holster. For those of you who use IWB holsters, how much do you increase the pants and belt size so it will fit? I'm used to my pants fitting my waist fairly snugly, and I know a holster wouldn't go in there. It will be a small gun - maybe a Kel Tek PF-9 or P-11 or at most an XD or similar. I also have a J frame snubby. Also for you other wierdos like me who actually wear your belt at your waist, does your IWB cause your pants/belt to slip down below your waist? In other words, do the looser pants tend to ride down? I'm one of those oddballs who actually has a butt and a waist. Thanks.