I have seen that some talk about sanding down the top side of Lee molds to remove any imperfections or gouges. Will doing this cause any issues as the vent lines will be removed? I do sand the sprue plate with 600 and higher to remove any on it but not sure about the top of the mold.
I have a couple of Lee molds that I first started casting with that are really gouged on the tops but still cast decent bullets.