Well, My week long pack weight is right around 27 lbs, with a litre of water in the pack.

Since about 9 lbs of that is food, *in theory* I could go out to a month with about 53 lbs. - trouble is I wouldn't be carrying 53 lbs in the backpack I carry that 27 lb load in - so add about 6 lbs worth of backpack, and I'm right there in the 60 lb range - and I'm betting I'd take a bit of extra
food and be looking into 65-70.

I've never had the chance to go out for that long - longest about 8 days.

So what's my comfortable packweight? nothing

What will I carry? whatever it takes for me to be comfortable and go where I wanna go. I normally go out for a weekend with about 21 lbs, including a litre of water and food on me. I *have* been out for a weekend with a 12 pound pack - (on the blue foam, tarping it under my poncho, in summer). is my 12 pound pack more comfortable? yes. am *I* more comfortable.. nope