Jonathan wrote
wrote

Next job is to chop the main limb into usable wood. I'm
thinking of rigging a frame so the saw works like a chopsaw.

Sounds absolutely lethal to me.

Dont see why it should be lethal.

But given that none of the pros use chainsaws
like that, not clear how well it would work either.

With a normal chainsaw you use the spikes on the
front of the saw body to dig into the wood and provide
a leaver that allows you to sort of leaver the bar into the
wood to put more pressure on the chain so it cuts better.
Can't see how that could work with a chainsaw rigged
up to work like a chopsaw.