Lead body work

I used it to fill a couple long partial quarter panel seams. One panel was stepped, the other fit into it and was welded but the fit up wasn't as tight as I like, which is to have the weld fill the gap. So I felt this long thin line would probably show through regular filler. It worked good but sure is a lot more work than using fiberglass reinforced filler. I ditto the comment on the Gene Winfield video...could not have done it without that instructional lesson.