[rgunlock]

Thanks for the advice Ogre! I think I have a multipart problem and you've hit on part of it. In this particular patch, I should have cut out more metal where it bends over at 90 degrees. Didn't realize how thin that was. I think my other problem is I tend to get too aggressive grinding the welds and make the metal thin so I get burnout when I try to touch up.

I have gone back and put in more welds to get to the point I only see a couple pinholes along the edges now. If I can get this ground down without making a mess of it, I think I'll leave it at that point and try your duraglass suggestion to finish it off.