i've said it before and I'll say it again.
Those who play in the woods use laplanders, but those who work in the woods use Silkys. There is a reason that silkys are the choice of those of us who need to cut trees for a living

They are more expensive than lappys but they knock spots off them and you can get a huge range of shapes, sizes and tooth patterns in folding and fixed blae varieties. I've got a couple and another two on order now. I know of a couple of professional tree surgeons who only use silkys when working aloft because they are safe and still fast enough to be viable economically