Someabiatch---this was one hellish day for rust repair. My new mig welder is so freaking hot on its lowest setting I was about to chuck all my tools into the street and strip naked and shout "Ice cream--get your ice cream here"
Well, I finally ran out of the wire that was supplied with the welder when I bought it--it was .035 inch.
I replaced it with the spool I bought of .030--this made a tremendous difference in my ability to weld the thin rusty stuff..
Here are a bunch of pics--enjoy
This one is before front trunk repair. The lower seam where it meets the inner fender and trunk floor was completely eaten away.