I have 1) been burned by this phenomenon, when I didn't anticipate it. And 2) successfully used it to compensate the anticipated tube warpage that happened in the intended structure. In my case it was MIG, so I had to grind off the sacrificial compensation weld beads, but it worked out great and the...

hello - new member introduction.
Have been MIG welding all my personal projects for a few years now.
Currently working on the long-time goal of getting a TIG rig up and running.