I rely on @
karmapolice for these things and basically just do whatever he tells me. Currently running a 6378 (I think, but mine is on a UBL with a strap, not a paddle) for G19.5 MOS with X300U and RMR. Pistol and rifle pouches are ESSTAC Kywi. I have two/ea. For CC and when I was shooting 3gun I used the Comp-tac pouches. I wanted something with a little more security/coverage, but not sacrificing much if any speed. The Kywi's do that for me. I have a Multitasker Armorer tool/pliers in their pouch (EMDOM I think) strongside behind the pistol. Dump pouch weakside/asscheek behind the second rifle pouch. I don't have a light on the belt. Might get there eventually, but I keep one of the little Streamlight single AAA microstreams clipped in my weakside front pocket for admin stuff. Otherwise, X300U (1000 lumen) on the pistol and M300C (500 lumen) on the rifle. I'm not a cop, so not using the light to search vehicles, crowd/suspect control, etc. If I'm out and about with guns, I want a lower light signature unless I'm deciding if something needs to be shot or not (coyote, bad guy, etc).