Dara holsters ALQD hole pattern?

[JesseM]

I'm thinking about getting a TLR7a now that I can use it in Carry Optics. That means I need a new holster. Right now there aren't too many companies that  make a OWB I can use so I'm looking at a Dara.

 

They make this ALQD thing which is interesting to me because it would be nice if I ever wanted to change guns or holsters later. My quesiton is about the mount it self, specifically this thing:

https://www.daraholsters.com/alqd-mount/

Does anyone know what hole pattern it uses? I have a lot of Blade Tech and Comp Tac holsters already and if I could add one of those mounts to those holsters I would consider getting the mount for a few I want to use. If I can't well then it's slightly less appealing.

 

Anyone have some experience with the system?