Update: Got the Clutch insert kit and it's good. I replaced my kydex pistol mag pouch with the pistol mag insert to which I like better. One thing the kydex has going for it is rigidity for reinserting mags. If you were topping off your pistol and needed to stow the partial mag in a hurry, you can always get it into the open cell albeit with iffy retention. The M4 mag insert is just right for a SOFT-W. The GP/IFAK insert was just what I needed for the IFAK pouches I'm using. The cells hold them in OK, but without extra retention of some sort sometimes one or both would get squeezed out of their cell like toothpaste. I just wish I had a second IFAK insert for my second IFAK pouch. The only downside is that right now the inserts are only available as a set and not as individual pieces. Overall, I'm starting to think I could have gone with a medium, but the large isn't sliding off or anything. One con I've discovered is that the way I wear the Clutch blocks easy access to my pants pockets because of the width of the whole thing. Not a huge issue since I usually end up moving some things out of those pockets anyway.