My hats off to you all here...
Yes, the hinge wood. And metal wedges. And the 290 bar. And the safety RM2 chain. And the 20 inch bar on a doug fir that size. I appreciate your comments and feedback. None of you missed anything! AS Sleuths! Except... you should have put it all together. Something non-conclusive here, that one of you hinted at... I thought that Shirlock SawTroll Holmes would get it.
I did not want to test a saw that I had never used before on a 100+ ft tree! Nor did I want to risk a saw for that kind of money. So I staged the photos posted here in a rather sly way. I got the idea from knowing how my AS Avatar was shot in the film, Sometimes a Great Notion. I left this last photo out, see? I tried to get that spar to fall w/o cutting off the hinge, but she would not budge. Too heavy to heave over, even bumping it with the Polaris ATV. I thought of using the tractor to shove it over and save the hinge (as I am famous for doing on AS). But the Kubota "garden" tractor was way down in the barn and this was about a half mile up in the far corner of the property. If I had done that I could have had a nice hinge to show.
The dang thing refused to tip with any hingewood. Too level a cut? So I had to cut through the entire hinge from both sides and smack the wendges in the full way (with the saw long gone) before it went over. And yes, I see the reason to have a long bar in a doug fir this size. The 20 inch would be better in oaks and madrones and maples that I have to fell here though. We have a lot of stumps and spars like this here that I am flush cutting, as they tend to be fire hazards and props for poison oak and blackberry. I see a long bar in the future for them and some good sized doug and grand firs here that I have to fell too.
I learned a lot from this test about this saw. Doing it this way I could focus on the saw and not have to worry about the physics of the tree falling in the process. I also learned from your feedback from looking at what I did here. I can assure you that I left a good 2-3 inch hinge on the thing before cutting it out. I did use the metal wedges, but it was my bar and RM2 chain... I need to get some more plastic ones. I normally use these for firewood splitting. They are way too heavy to drag around in the woods anyway. But they worked in this case. Next time I will use a 441 and orange wedges, use the tractor to heave the spar over and leave a hinge... I will try to fool the AS panel again. Be warned!
So, here are the final photos. You may toss the cabbages at me now as I run away from the stage...