MTAC from Comptac is it for me. I find it sits well at about 2:30 for me. But then, I'm on the large side.
Is that technically a pancake holster?
I don't consider the MTAC to be a pancake. I love mine and it's a great rig. But to me, pancake = OWB and 100% leather... a "short stack" of two pieces of leather with the meat of the gun (predominantly a revolver) contained inside, the slope of the leather blurring the thickness of the revolver's cylinder.