Hey Joe can you elaborate on what you mean by "urethane wave"? I've always done the 1000/1500/2000 cutting...are you talking about waves caused by wetsanding with 1000, ie what some of us refer to as getting "finger marks"? If that's what you mean then yes I understand..Thanks -Rob
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1969 Camaro/ Tom Nelson TT 434 / Wayne Due C5 / DSE QLink / and a bunch of other stuff...