i know it doesn't look like much of a change, but taking a flap wheel around all the edges made a HUGE difference. i normally don't go over things after welding. you can now wipe your hand around over the whole thing and no snags, scratches, or roughness. should be nicer for wires n hoses, and way nicer to work on in the future.
also smoothed out the welds on the sleeved holes, was satisfying.