Thanks Gov875!
It took me a couple hours on a saturday to grind and smooth the tail piece. The hardest part was keeping the grinder from cutting too much! I taped off the line I wanted to cut, but found it easiest to follow the underside of the tail piece, that is why I cut it upside down. The grinder wheel cuts and smoothes at the same time. I used a can of the best black spray paint from my local hardware store and it matches fairly well.
Good luck on your project,
Dennis