Yes, I use the one designed by Black Arch Holsters and it allows me to cant the muzzle end of the holster away from my body for concealment and does cushion the contact between the holster and groin. I like this wedge setup because it has a Velcro backing and allows the user to try different positions on the holster. Tier 1 Concealed and Phlster offer wedges as well. The option below may also be worth exploring.So is anyone using wedges or pillows/pads ? I don't probably need one for concealing/printing purposes, but those Mastermind Tactics pillows look like they might help with the holster digging into my groin.
Clinger Cushion
Cushioned Concealment Clinger Cushion Benefits Attaches To Any Holster Soft And Cushiony Breathable Ambidextrous Works For IWB Or OWB Holsters Water proof core acts as a sweat shield
clingerholsters.com