I got my comptac international holster a couple weeks ago and have had a chance to use it in a few matches now. It is definitely the highest quality kydex holster I've seen. Fit and finish is excellent and it fits my 5" STI Tactical frame perfectly, there is zero wiggle and with the tension set correctly it's not going anywhere, yet it still draws easily.
They just came out with this holster for the STI's a couple weeks ago, it's designed for Edge (even says STI Edge on the side