I doubt ANY outside the waistband holster will pass the new rules.
I doubt ANY full size auto will either.
A 3/4 in gap between any part of the weapon and your body is a hill to climb. Gain LOTS of weight folks.
If you are worrying about the daylight issue, shoot at night.
In the eyes of any competent MD a Hunnicutt vest is clearly a competition garmet, as are BDU's and lace up boots and tennis shoes, range bags etc. etc. etc.
Now that IDPA is geared for the new and average shooter I finally have a chance. I am fat, old and don't practice. The holster don't matter, my four Comp-Tac rigs can still be worn for street carry and I'll buy Wilson competition equipment for IDPA use.
Ray Crum