For range, hunting and SHTF use, I prefer to use GCode holsters when I can and adaptors to the GCode wheel when I can. Here's a few set up on my bat belt:
USP-45 Tactical in a Blade Tech. Yeah, I got the USP-45F size holster so the end of the barrel does protrude a little:
USP-45 Tactical with UTL light in another Blade Tech holster:
Ruger SR9 in a Blade Tech holster:
Taurus 24/7 OSS/DS .45 ACP in a Blackhawk Serpa. Yeah, the only holster really made for this pistol:
S&W M&P45 in a GCode XST holster. I really like the release on these models!!!!
H&K VP9 in another GCode XST holster:
Steyr M9-A1 in a Bladetech WRS Level 2 holster. A little more awkward to use than the GCode design but I still prefer them to a Safariland hood:
The secret to the rapid replacement on the GCode mounting wheel. Insert the 3 studs into the keyholes, push down and the tab is pushed to the left to lock it in place. To remove it, squeeze and press the locking tabs back to the right, move the holster up and out of the keyholes. Very quick, easy and secure. Not really good for concealed carry as it's a bit bulky but for OWB/bat belt carry, it's a pretty slick system!!