I've used a full-size smartcarry to carry an XD-9, CZ-75B, G19, G26, Kel-Tec P-11, SW642 and Ruger sp101. Like the website says, you can use a safety pin to down-size a larger size to fit a smaller gun. I don't particularly like the way that clump of extra denim feels below the barrel when it's safety pinned for a much smaller barrel but it works. On me, the very edge of the butt prints even with a G26. It's not bad but I can't say it just disappears. Close but not perfect and someone would really need to stare to notice. With pleated pants it's easy to conceal in the pleat. It can also be moved off-center to conceal the butt better in flat fronts. Looser pants (and probably a flatter stomach) conceal it better and looser makes the draw easier. The draw is much slower than a typical IWB and is very difficult sitting down but it works. I agree with RecoveringGTer's comments on the strange draw angle. I find longer barrels like the CZ-75B less comfortable and I need to shift the barrel down a pants leg when sitting. Using a urinal is also harder, you just have to use your off hand to get it (the smart carry) out of the way. It get's easier with practice just don't slip on the smartcarry mid-stream (don't ask how I know). I used to use it a lot, especially when I first started carrying and was paranoid. I still use it when I absolutlely positively want it concealed. I haven't been to the smartcarry website in some time but as I recall the sales claims were pretty accurate. I liked it enough that I bought for one for my daughter when she got her CCW. She also likes it, but it's usefulness for her is limited by current female fashion. YMMV, hope this helps.