I traded my SP-175 plus for a tapped Thermal-arc 181 the other day, and
was not happy with the 4 tap voltage. It's really high and worse if you have
high input voltage to start with. Anyway 3/16 steel was a mess that you
really could not adjust out. I really like how it welds on the lower taps and
prefer it over my last SP-175 plus by a mile. (My first SP-175 was nicer then
this last one)
Anyway this is a picture of what I did and a weld bead with the fix,
second one without. I did not change any settings between the two.
The one picture shows the coil of wire a bit better, but it was not the
final deal. Extra 25ft ground lead in the #1 pic.
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