Originally Posted by Paul Cocklin
I think the more appropriate measurement is by pain.
Large format = moderate lower back pain when hiking more than 1 mile roundtrip.
ULF = a crippling inablility to move the next morning after a 1 mile hike.
Some days I shoot LF, some days it feels like ULF.
Paul, don't you mean a crippling inability to move the next morning after a 100 yard hike???