I carry a DW 10mm commander in the woods often. Usually in a Galco pancake style holster. The pancake style works surprisingly well under a pack hip belt. The hip belt actually helps hold the holster in place. Second choice would be a Miami classic style shoulder holster. I can't stand the chest rigs, they almost create a clausterphobic feeling for me, and you can't use the chest strap on the backpack with them either. The leg holster...you go right ahead SWAT guy. I tried and learned that lesson 20 years ago. No way would I walk 100 yards with one of those dangling, flopping around on my thigh, creeping up and cinching the twins.