Big old dead stags aren't the ones to learn on by yourself, they are the ones that only really experienced fallers should tackle, the worst thing about them is that limbs can fall out if the top of them at anytime, that's why you never ever drive wedges into them.
Crankski
I can agree with most of it there. Certainly don't "DRIVE a single wedge hard with some species but use safe wedging practices. Falling branches isn't the "worst thing about them" Falling branches is no joke I agree and will break you down to your pelvis like nothing or worse. Often branches will come out from between green trees and in the coast here we hang in the cut for about 3 to 6 seconds after the tree starts to lift. You have to be looking up as the canopy opens. Limb tied trees are felled together
These ones you speak of with branches may not all be Dangour tree's? (DT) There is a difference between a snag and a DT, A snag isn't necessary a dangerous tree as It was pointed out.. A 'DT' isn't necessary a DT to the faller either as it can be classified a DT by location, It may be a green tree and classified by lean. All dead tree's are certainly not dangerous. Healthy trees that were recently killed from bugs and the same with recent light fire scorch.
20 years after a burn the trees are hard like rock, have been my experience, it's the roots system that makes them all DT. Just look at your site overview and you will see blow down up to your waist. It's not the wedging of these tree's you may be falling or the roots uplifting that is the concern but others uplifting from the disturbance.
NOT falling branches but the bigger concern is the tree folding from the force of a wedge. With certain species like white snags here in the PNW, Some will say never wedge them? At least don't do it wrong. It's just a dangerous game and you only have to be wrong once. A faller got killed on a small crew I was on in July from wedging a balam (Grand fir) You talk about your plump Bob so often but tree's have an obvious lean up a hill quite a ways and gravity will suck them down still. Another example I found in north BC and AB I pick direction over lean and branch weight with in reason. If I possible can start from the east when I will cut them for north east to a south east direction even when it looks like a west lean and 8 out of 10 of the ones that seem obvious west will go to the 'east' I would take my experience over your plumb bob at $100 a tree and for every $200 i pay you, you will be paying me $800 I believe. I know you will find that pretty Chucky soup but it's not up for debate with you.
It is not only the best things I have learnt about lean but one of the best things I have learnt about falling. Anyway that faller had a hole at the top of the hill and likely believed the snag was leaning for the flat area above the hill. The tree was getting pull from the hill and it sat back on his saw as we could see teeth marks on the butt as well wedge marks. He must have been so sure it was going to go up the top of the hill on to the flat area that he didn't even put a wedge in it. Don't bet against the pull of the hill.
Now he's wedging from the low side with branches in his vision from the last two cedar tree's just off to his left. Vision impaired? Working from the low side? how was his safety trail? Was he alternating at least two wedges? Was he waiting for the force to disperse between hits with a muff up? Did he slip or trip? Could he have gotten his spare saw as he was close to the road and redirected it down? Was he being complacent and careless? Could he have fell the three together down the hill even if it meant wedging the DT a little? Probably but he did what Worksafe BC wants us to do and that's fall it as soon as you have a sizeable hole to do so. Obviously got himself in a pickle when it sat back. Deaths of others become my experience. I use wedges for holding ugly DT together or from pinching if I don't cut them up right to begin with, it's like bucking, you have to feel for the pressure on big snags. When you can fall large dia ugly snags without wedges then you're loggin' as for wedging for lean? One faller with a lot more experience than me said over soup right after this accident that he will never wedge a white wood snag. I don't know how he does it but when you stand in some of this terrain here you have to think like you are cemented in concrete because that's the way it feels. Getting away from a large falling top at times seems like bad odds. You don't even have
to be wedging white snags to get it from a top. Never stop the forward sage by repositioning your falling Dogs or you will snap that top back at you. Under bar sized trees, set your dogs in the corner of the mouth and don't stop cutting. Not a tree that you want to run out of gas on.