^ That's one - but that steel also gets hot, too - particularly if you're taking a high-volume-live-fire concealed-carry class. :wink: I had thought that might be an issue, before I took my first serious concealed class this weekend, but decided to just shrug it off: and you know what? it is a concern, particularly for those of us who don't wear a tucked-in undershirt as a buffer between the gun/holster and the rest of our body. The leg of my boxers kept me from getting burned, but it was still, at times, somewhat less than totally comfortable.
jst1tym, the lint/debris issue I haven't had any trouble with, with any of my open-ended holsters: but one thing that's commonly reported is that open-muzzle IWB holsters do cause a bit faster wear on one's pants.