Steve, very cool little system there. I'm a big fan of BPL and I'm surprised I haven't seen that yet. In my further reading last night and today, it seems the cold has a lot more to do with trouble and alcohol stoves than altitude. I might need to sleep with the alcohol bottle in my sleeping bag, just to keep it warm for the morning.
Here's my little system for now. I bought this stove from a friend for $15, so I'm not exactly invested in it too deep. I like how it all fits inside the pot, with the exception of the fuel bottle. I'll try it out on lesser trips, like an overnight at Gorgonio coming up. We'll see how she does.
http://picasaweb.google.com/jevanspaper/Outdoors02#
