All along I knew EJP was right about a flail mower, but I finally have given mine a good run and declare it GREAT. The 'float' on a fast hitch really helps, you don't need to keep your hand on the TC lever like you almost always have to with a rotary mower on rough terrain (it is a 'rock farm' after all).
I took the diagonal link out (per the instructions) but since I didn't have the rigging for the chains there was too much swing side to side, so I put it back in. It does a nice job of cutting too.
Since it was originally yeller and I had a can of federal yellow kicking around I painted it with a brush, came out way nicer than I expected. I wouldn't hesitate to use the CaseIH paint with a brush again.