remember fellas its a controlled short circuit, you gotta have the spark to make the pool. The wire is just filler, this is the reason for greater puddle control, uniformity, and overall smaller tighter weld pools. For you fella's struggling with .035 you need to do one of three things. maybe all at once. TURN up the voltage, TUrn up the over all travel speed. And most likely buy a bigger machine (easp. you 110 lovers.) Seriously though smaller wire requires less of the weld energy to make the filler molten. Regardless of what filler is used you gotta insure that same arc is also making the base metal do the same. The true "tell" of both happening is weld bead profile and secondly consistency.