I've been using my McHale for a couple years now. It's a CM pack that is about 4200cu in. It does everything I want it to and is pretty lightweight (went with the dyneema fabric). I only went with a McHale pack after all the packs I tried were insufficient for my needs. For my back, this pack fits the best, and that's what's most important. BTW, beautiful pack you've got Russ, makes me so jealous.
