Oh I know that all to well,
I've got a Hobart handler 110 MiG, never tried it with out the gas, I thought that's the reason for MIG, (gas shielding). Found an old thunderbolt AC on the side of the road 30 years ago that I still use most. Went and bought a Honda powered 170 amp dc welder cause everyone said DC was easy???
How do you Guys run your DC welders, electrode+ or E-?
E- is called straight polarity I believe, which sounds contradictory to ac welding, been told that's the way to go but didn't find it any easier.
I don't have much time on the DC machine so I guess I have to practice more.
Been considering a class in welding, would help me I'm sure.