Tim_B.
TreeHouser
Back to the trees...
You've got the 540 wrap going, that's what I was talking about, Gary's is like a reverse 360...instead of going around the back of the tree from your side D, come across the front first, then wrap once. You'll end up with an 'X' in front of you.
I'll repeat what some others said, I usually cut my face from the side somewhere so I can see it, then go round behind or as close to behind it for the back-cut. I always try to have both of my hands on the top handles, right on trigger handle (like always) and left hand on top also. It gives you a better safety margin when the chain is ripping away right in front of you at mid-chest/belly level. You can brace the saw better than if you've got your left hand down on the lower curve of the handle.
If you can time it right, get the saw out of the cut, chain-brake on and dump it down on the lanyard before the top goes completely, brace both arms against the back of the tree, to help absorb the ride if it comes. Holding your saw in one hand while things are wobbling around runs the risk (however slight) of doing something unintentional with it while it is still running. But hey, I'm a girl and you boys have more forearm strength than I do!
I'm just either re-reading this thread, or catching up with it since last I read it, and can't remember where I left off. Fiona's post is from page 12 of this thread, which is where I'm at with reading it, at present.
I just wanted to say "nice post". Some subtle instruction on technique, that if one found a way to follow, could keep a climber from possible serious injury. Thanks for the great advice.
Tim