Well, since my Stickweld 140 works so well, I decided to buy a Migweld 200s.
Just opened it tonight, and have one question.
In my other mig machines, when switching from MIG to Flux Core,I swap both cables inside the machine.
In the 200S, there is only one cable to swap out.
I am guessing if the cable inside the machine is attached to negative, the ground lead outside is plugged into the positive terminal, and
if the cable inside the machine is attached to positive, the ground is moved to negative.
I mean, that is the all-too obvious answer, but decided not to make any assumptions.