Here I have trimmed secured and welded the patch in place.
Now, I spot a max of 6 times and go sit and look at my phone for a while until I can touch the spots. I make sure the metal has cooled then spot 6 more times.
Much better.
Learn as you go!
1948 GMC 2 Ton 1958 GMC 370-8 1965 GMC 5000 1970 Chevrolet C50