I have done a couple of practices on an old Capri door. It is 1mm thick. I ran out of gas during the first practice. Got some of the Clarke disposable gas for my second attempt. I tack welded then stitch welded between tacks. The line at the bottom of number 2 was just me setting it back to those settings as I feel that was the best of the three?! The bottom part of 4 is like that because I missed the join. D'oh. Number 3 was me holding the torch for longer than I did in number 2. Will keep practicing before going for it for real on the car. I have more pictures but wanted to make sure I am uploading them correctly first. Cheers for looking and happy to hear any advice on these.