I'm more versed in cutting tall conifers, so broad trees don't come quite as naturally for me. There seems to be some conflict between some members of the online community between west vs east coast cutting techniques...the way I see it is they are completely different situations and no technique is the best for all region.
Helmet cam footage is never the best. On the moto bike, it really flattens out the terrain and makes everything look easy. Plenty of uber-technical, hike-a-bike trails turn into groomed riding park trails once on the lense.
It's the same story with tree work. They don't really show the whole situation... I'll sometimes wear the go pro when climbing. Watching the footage is definitely not the same experience as blowing the top out of a 100'+ tall pine. 3rd person angle is the best, but when I'm working, I'm too busy to worry about getting the best footage. Most of my vids are when I'm cutting my own trees and aren't working against the clock