Does anyone have one and what set up (wire size, and settings) have you found to work best on sheet metal work (floors, rockers etc). I am using one that belongs to a friend and I cannot stop burning through on everything. It is running .023 wire, 75/25 mix in the bottle, and even on heat setting 1 I am blowing holes. I am used to a Miller 251 that I use at our shop and with .035 wire in it I can do 10x better then I have been able to do with the 130. I dont have 230v in my garage otherwise I would just bring the 251 home. Any suggestions?