Hey Joe, even the full size hoe's can have problem's with side cutter's. You may try something shaped more like a single tooth in place of them. Or try sharpening them like a wood chisel, might be a tad "dull". I've seen boom's break, from being sideloaded.
Please post a picture of your "vee" bucket''
http://www.werk-brau.com/VLineStrata...tyBuckets.aspx
With the vee bucket's, they stand them up 90' to the dirt to cut level or square, raking motion. Would that help with shaping the wall?
6 year's out of a servo, is that a new record for rc trucking?, in an open pit mining situation! Scale wise that truck has probably moved 250,000 scale cubic yard's!!!!!
No cow's this year?
More time for rc stuff
Cheer's, Neil.