Back in another life, I was training to be a machinist. One thing we had to do was take a block of steel, file the flat side (4 x6 inch) then rub it on a lap table - metal table with groves cut in it and covered in a thick goo like abrasive. One guy spent a lot of time on the filing step, we thought he was crazy but after hours on that damn lap table trying to get it smooth, we realized he had the plan and we were the fools. My point, sometimes you have to take an agressive step and thoroughly level the surface, it makes the final polishing much easier. Of course it`s easier to just bribe the second year students to use the Bridgeport milling machine - but that`s another story!
Good job David, looks like you got a plan.
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