[Kemo]

flux core at .35 or .3 wont work well on the thinner stuff. after trial and error, I also found out that you need to make sure you got a real good connection at the wall. I was on a 20amp and was having a fit. Finally plugged directly into the wall (no extension cord) into a 30amp plug and it was like a new welder.

I have the Campbell Housefeld Farm 110 with std plug btw. I was able to get better welds with the .30 flux core, Im a hack, but I have a really good instructor.

If you can stomach the money, go to the gas setup with even thinner guage wire. I dont know how much thinner you need to go, but Ive heard its night and day. Kurt V is saying what alot of other guys that weld alot say to me. I think that would be a good place to start if the .30 flux and the better power source dont help.