I took my prototype to the Silencer Shop in Austin, TX yesterday to get some feedback and check how the suppressors would fit the holster. A Big thanks to those guys for their time and expert opinions.
Tried several combinations with no problems. The only one that "snagged" was a Sig P220 with the Osprey suppressor (which is HUGE). To make it work universally, I will need to use a different holster or extend the length an inch so this style suppressor doesn't stick out past the end of the holster.
All of the round profile suppressors we tried worked perfectly with the existing holster.