Stormatious wrote:Also, try different sides of the blade when you scrape, one side may give a less smooth finish. And try do it at an angel. Test it out on a spru first.
Edit - And make sure theirs no bumps on the blade, get a clean fresh smooth one.
The back side of the blade functions infinitely better as mold line remover (has a 'scraping' edge as a result of production method).
Seconding Insaniak's suggestion - just scrape it off and touch up with paint. Because the mold line you've missed is not an edge that will come into contact with anything (fingers, edges, etc) you won't have to worry about it being scratched off.