Crash Enburn said:and 'sand' the treads -- although there is no need due to projections, but it will help lighten the wheel a tad.
That is what I read on here about the wheel surface. The only mold mark that I can see is on the double step of the outer hub. I decided to leave it alone though because I didn't think I could remove it without making it worse. Now that I have some of John's wheels I may play around with the stock ones.