>> IMO, as we age, if we want to hike more mileage then we need to really lighten our packs <<
Indeed, the older we get, the more complicated it becomes to do high mileage with heavy packs (‘heavy’ meant -in early days- a total weight of over 25 kgs - 55 lbs). Then the time came my body -especially my knees- was telling me I had to either (1) give up walking or (2) get the pack weight down or (3) do very low mileage. I wasn’t willing to do either 1 or 3, so that’s why I started reading about going UL. As I said before, I’ve managed so far to go as low as 11 - 13 lbs, but I’m convinced I’ll get it down to 8 - 9 lbs (hopefully even less). As most of us, I’ve created a spreadsheet with my gear list but, taking it a step further, I also created a spreadsheet with my menu. It isn’t completely finished yet but the idea is being able to alter the ‘ingredients’ of my menu and instantly getting back the changes in calories (this part is ready), as well as the protein, carbs and fat proportions. So far, this has enabled me to get about 3000 cal out of 700 gr (1.5 lbs) of food per day and I’m trying to get the same calories at an even lower weight, with a ‘perfect’ balance of Prot/Carb/Fat proportions.
>> My gut feel is that 25 mile days with close to 30 lb might be pushing the limits unless you are superman :) <<
I’m certainly not superman and have been doing high mileage with the initial 30 lbs on my back [first days: lower miles; towards the end (less food), higher miles] with the mentioned sandals. And I was fine. That’s why I wanted to know whether it would be possible to do the same -eventually, after the required training period- with the minimalist shoes.