This was my son's Power Wagon where I'd butt welded.. it was my first time and I thought I was doing it right but what I was doing was like the kind of work you would do on the outside of a car... Kinda..
^^^here you can see where I laid the patches in and drew a line around the edge of the patch and then came in from them and cut it out a couple inches short of where the patch reaches. you can't see the line because that's where I went ahead and ground off the paint for a good weld....
These were way faster as I just tacked them in nice and tightly and use my flap wheel to smooth them off and shield around the edges with a little goop and a shot of paint and bazinga!..
These were the patches that were $24 each and about $24 for shipping for both of them....