I am interested in this as well, but the kit bag wont work for 2 reasons....first, i carry in grizz country and this doesnt seem to quick to deploy without fumbling with a zipper. Secondly, that is where my binoc harness goes that has my rangefinder, wind powder, etc. I need something for the belt.
Ahh yes, the dreaded Minnesota Grizzly Bear! Always an ever present issue eh!
Funny how someone "Knows" something won't work, when they don't own it, and have never tried it...
I wear an HPG Kit Bag fairly regularly while hunting BG, and carry various handguns ranging from a 5" N Frame .44 Magnum, to a Glock 21 .45 ACP, with no issues.
With a modicum of practice, and proper setup, a reasonably quick presentation of a handgun is pretty simple.