I have only tried AC as this was my main reason for buying it.
While welding on AC, if I set the amps at say 70 and attempt a weld and decide I need more or less amps and turn to look at the display, it will be displaying real low. when I turn the amp knob it returns to the original setting. I didn't record what the low amp reading was but it was about 1/2 of the setting. Is this normal???
I plan on trying DC, stick and plasma this weekend to make sure those processes work OK.
Other than the funky readings on the display it seems to weld fine.