A lot of intelligence is involved in all this work too. A lot of the old Frenchies around here were a hair over 5 foot and a 120 or something and they used their finesse to get the job done. Working in the woods with a crosscut, axe, peavey, pulp hook etc. will kick your ass at first, or if you arent adapted. Even people who have been working with heavy machinery, chainsaws etc, who know a thing or two about it have a hard time at first, because its all different. You can make cuts with a chainsaw that would pinch a crosscut every single time. Its a whole different game, and youve got to have the intelligence to indentify the differences.
When I filed some crosscuts for an arborist last spring, he spent about 2 1/2 hours talking and pacing back and forth in my horrifically messy shop. It was cool to see someone who didnt just see a big mess like some of my uncles in construction or young folks who wind up in there.