Dumb question maybe. When Mig welding and it is doing it in spray arc. Is the sound from welder missing the frying bacon effect? If not what causes the weld to run at a gentle hiss with the pool forming well with good penetration. 6 mm mild steel plate bevelled. Smartmig 162 on full power. Wire feed on the slow side. Argoshield light (93/5/2) set at 10lpm indoors no draught. Room temp 24 degrees. Cheers.