I've had my vantage 300 since may of 2008 I've been very happy so far only one repair but here lately the machine just ain't welding right I've turned every knob on this thing it digs like a freak on the bottoms of pipe it won't cool off and is starting to bog down when I light up a 3/16 8010g the caps are gettin ugly too it ain't me cause I welded with a buddies SA200 today it was great so idk WTF but if I don't figure it out quick it's gone!!