41234
I like your ideas. Of course in physics I learned to always qualify my modeling with, "all other things being equal." Where we hike elevation gain is much more the culprit in my opinion. I can hike all day with an UL pack, but if I have to gain 3 or 4 thousand feet I am certainly bushed. Thanks for your comments. When I was young I often ignored extra weight or just grunted it out. No more.
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Jim M