Thanks for the tips. This moving metal around is something I still need practice at. Just when I think I will have some thing flat, it has just move a little further over. The disks have helped, the hammer and dolly is getting more consistent but it never is perfectly flat/smooth? I can always feel something just not right. Not sure how the guys that pick and file get it done!. Good thing I have a lot of time to work on this or I would be getting stressed out. And there is filler!