You can run that bad boy in 3 gun. Come on out on the 18th and give it a shot. A buddy if mine used a similar holster for his first ipsc match but he was told to get another holster for his next match. It boils down to the fact that it is slow and potential unsafe to have to reach down that far when trying to draw as fast as you can. In 3 gun the draw isn't as important as keeping the weapon secure when moving so it works in that sport just fine.
Just let me know when what where how much ect.
Three gun looks like a blast