Come on guy's.......To each their own.
You can't possibly watch that video and say that his chain won't cut. Maybe it won't cut as well as your's, and maybe it will.
I agree that he moved the file around too much, but that may be due to being on video, I'm a little bashfull too.
Most of you would pick my filing apart. I don't file round worth a crap, I use square filed chain. Several guy's around here pick on my method, but it's how I taught myself and it works for me.
A lot of times when cutting I'm a mile or more from the truck, I ain't packing out to clamp the bar in a vice, and I sure as heck ain't packing a vice in with me. I carry 1 extra chain, but that's incase my chain get's damaged bad enough it would take too long to to file it.
If we all did everything the same, how dull would this world be? And where would we come up with any improvement's in anything?
If your chain's cut well, keep on keeping on. You've just seen how someone else does it.
Andy