I saw a hydraulic pole saw on a mass mounted to a CUT loader at the fair yesterday. Called a "Limbinator". Looked pretty nifty. Anyone got one? Close to 2K though (ouch).
Looks like it needs between 5 and 8 gpm.
I thought it was cool that the chain gets lubricated from the tractor hydraulic oil.
I think I would fill my tractor hydraulic system with Stihl bar oil, so the chain would last longer.
Edit: I meant to say, I would fill YOUR tractor with bar oil.