I use one.
Strip of metal is attached to frame of gun with thin double-backed tape. Taped metal strip is extremely solid. Mine came with 5 pieces of tape so it can be removed and repositioned or transferred to different guns. It has three holes drilled & tapped in it; uses two of the holes, so there are two different positions (1/4" different carry height). Clipdraw is screwed to that strip with two very small screws. Screws back out a hair on their own and allow the clipdraw to have a small amount of play (not necessarily a bad thing) unless you use blue loctite on them.
Fits a little too tight on my Beltman horsehide - can put it there, but have to use one hand to hold jeans and belt together. One-handed with my fairly-heavy single layer belt.
For me it stays put at appendix carry, and is a very good solution. I have carried it briefly at 4:00; it stays put better at that position when clipped over the pants and under the belt. (That allows it to sag just enough that the cylinder sits below the belt there and that takes care of retention while sitting.) Edit: I wouldn't recommend this position - It can sag and ride too low for a good draw, and if clipped to the belt I fear it will fall out!
I believe that whether it will work for you is, just like with holsters, a crap shoot... but it's cheaper than most holster experiments :image035: