The logo's are why I picked it up lol. Im guessing you mean to turn up the power and not the wire speed? The problem was, that the metal on car is so bad that some spots would burn through so easy that I couldn't turn it up at all or else my welder would have transformed into a plasma cutter lol. I think the uglyness is a combination of both contaminated/rusty/thin metal and my lack of skill, but its ok, they make grinders for that kind of thing...