Hey guys. I finally managed to get out and use my new R-Tech 250 mig the other day and it's causing me a bit of confusion. At first I was just getting an arc that was more like a plasma cutter than a welder - so I messed with the wire feed and seemed to get it somewhat sorted. But now it's really rough sounding, like the wire feed is too high. I got sick of trying and went over and got my neighbour who welds for a living. He came over, had a little play with it and started chucking out welds that I could only dream of making. They look perfect. But it still sounds wrong! It's crackling and spluttering like crazy and I've got to say, I've eaten a lot of bacon and it's never sounded like that when I've cooked it! Any idea what could be wrong? I'm using a fairly decent .8mm wire with 5% CO2. The wire feed seems smooth but if I turn it down until it starts to sound closer to right it doesn't weld so well!