I suspect it is me! Using the settings advised on my TIG. Just trying to run a bead for now. 4mm thick aluminium angle. NO pulse. If I put the electrode too close to the ali - say 1/4" or maybe 1/2" - it pulses and makes nasty spattering noises. Pull the electrode much further away - say 1" or more it is far more stable but then I get a wide fan of heat - it is easy holding it this far away - is that normal?