I had a good experience with some kydex and wanted to share. well, I picked up S&W M&P( with the Apex comp kit- awesome!) and I had a Comp-Tac IWB in kydex for a Glock 23 that I once had, so I decided to try and remold it to the M&P.
After some research online I went ahead and it turned out perfect.
One person who makes kydex holsters uses a 2 ton press and takes 2 pieces of wood and glues a foam mat onto them and heats the kydex and wraps the item( knife or gun) and then places them between the wood and presses them with the press, to make a perfect molding.
Well, I don't have a press, so didn't want to make the wood/foam thingy. After some contemplating and figuring the foam density, etc, I decided to use two phone books. They worked perfect.
So, heat the kydex to 300 deg F, not more then 350deg( I used a toaster oven). Heat several minutes until pliable. Place gun in holster( or wrap kydex around item) and place between two phonebooks and stand on it( I'm 200lbs) for a minute( until holster cools) and presto chango, a Comp-Tac iwb holster for a S&W M&P. Perfectly formed to the pistol.......