keep getting these little long pits that look like a worm crawled through the puddle.

INFO: I am using .045 Lincoln outershield elite in my Power Mig 255. I installed the proper feed rollers, liner, and tip. Setting the voltage at 26 and wire speed at 350ipm (per specs) I set out welding a lap joint on 1/4" plate. Got the worm lines. changed polarity, got the worm lines. adjusted voltage and wire speed repeatedly for 20 3" passes, still worms. went from dragging to pushing, worms. went from making c's to e's, worm tracks. i even got desperate and used a stick type whip and pause, worms. adjusted gas several times ranging from 25 to 40cfh, still the same.


i am at the end of my patience and would appreciate any input. I believe the proper acronym is FCAW-G. I was told this is the way to go for my type of ag-industrial welding due to penetration and versatility.

Also I don't have a bottle of pure CO2 on hand, running Ar/ CO2 and have Ar on the TIG cart and Tri-Mix sitting the benches.

i am thinking maybe slow down and put up with big bubbly welds?