Do they have tap roots..., or just surface..??
I've taken out a quite few with the ole' Kobelco 210... I'd cut all the roots I could, except the side I was pushing it towards. A little safety thing in my mind, in case I slipped off the trunk. Didn't want it crashing down on me.
Always thought it would be cool to have, and tried to talk the boss in to having a single shank root cutter/rock ripper about 2-3' long out of T-1 steel. Didn't happen, but could have used it a bunch..!!
With the quick-attach, it sure would have been sweet...
It seems we did find a ripper designed for rock in a catalog, which would have been great for when we were ripping shale for fill...!! But that's all we did... Find it, they wouldn't spring for one...