@stig I'd love to get to come log with you, or anyone else I "know" online. I'd do a strip for free (fun? education?) if someone would let me. I bet you could out dance me, but I don't dance. I just sit on my butt in one spot and let my long bar reach. ;-D Actually, this summer, my 36" light weight was often a bit short, but I wasn't going to swing the 42" full weight bar.
I can't say as I've watched any euro training videos, just vids of people cutting.
I am a strong proponent of bore and trigger on heavy ‘chair prone head leaners, I did every one of my big oaks this summer that way...though maybe not necessary with oak. Walt Logan, afleetcomman beat that into my head. ;-D On a green conifer though I'd prefer to stay in one place and have a bar long enough to reach through. I try not to be bent at the waist so I can look up. I was impressed with a young professional faller I got to cut with recently. He can fall while looking up 90% of the time, only glancing at the saw. Good practice for those of use who mostly cut dead. Doesn't really work when logging as we need low stumps. I try to crouch and look up. Might get hard on the knees after a while, like it seems bending would get hard on the back....? But maybe the back muscles become accustomed and get strong.
I did notice that when breaking down canopies, if I had to raise the saw above chest high, 50cc was preferable. I originally was using 70cc and 28" for the mid size stuff, firewood, but at the end I started sticking with the 90cc 36" and less bending/reaching. If I was logging and could only take one saw....hmm...