Erik W: The difference is that there is less oxygen at altitude and therefore muscle and cardio-vascular performance is less than at sea level. I live at sea level. Therefore, weight and other performance affecting attributes are exacerbated "at altitude."
e_utopia: I have a Talon in talonite and absolutley oove the knife. You would not have to bend my arm much at all to talk me in to bringing it. The idea, however, was to try to eliminate, to the extent possible while maintaining a comforatable "geared-up" status redundancy and unnecessary duplication. Normally, my motto is "Better to have it and not ned it than to need it and not have it!" But, 80 or 90 miles into this trip I do not know if i will be singing the same tune. Remember, we're talking 6000-7000 fet msl and my old, worn and battle scarred body.