Hi I have just purchased a new Draper 130A gasless MIG Welder, reason was for a restoration project on an old Mini. I am not going to mess about repairing bits here and there so I have purchased pucker mini floor panels, inner and outer sills and so on. It states on the welder output amperage 90 -130A and it only has 2 speed settings (Hi/Lo). The concern I have is that in reading some tutorials they state that the minimum output is very important and that anything above 30A is useless for the likes of car floor panels and sills. Any feedback please. P.S. I intend to practice before I start...