Not trying to beat you up when I say this...
It's not the outward appearance that makes a test grade weld... it HAS to have penetration... even if it finishes out "fine" on the visible side.
I agree with Elite -- turn the wire down just a skosh more -- heat up a bit more (one amp per .001 thickness of the metal --- so .125" steel (1/8th inch) gets 125 amps.
And he's right -- just stay with the trigger a bit longer...
Isn't this fun?!
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