Since you will likely see this situation again in your line of work (possibly under more hurried conditions), if at all possible make it a point to be there. While the physics may seem simple there can be a lot going on that you can't predict especially with little to no experience in these types of hangups. I have only cut a few - all closer in size to your tree #1 than your tree in question. Absence some extraordinary circumstance, I will never cut one again. Of the few I have done (no rigging), I have seen trees lift up and balance on the wire trying to decide which way to fall and I have seen trees catapult. When the last one I cut finally came down, it sent a wave down the wire that knocked a similar size tree down several pole lengths away. This secondary fall was a tree I had purposely skipped as being too dangerous for this cowboy but unknown (and out of sight) to me some other cutters had moved in next to it to cut other wood. No one got hurt but it sure woke this volunteer up to the fact that I was cutting way beyond my competence and taking risks that were not justified. This last tree also caused me to jettison a cocky (and dangerous) attitude that was developing in me - you know the one that says I can do it my way because it should work (or has worked before), it's fast, and it doesn't require all the stuff and procedures the pros use. Ron