Thanks Guys, yes mine is for garage stuffing around jobs, not commercial, but its only 'good' if it works. Alum. welding - yeah can't see a need, never been a material I really work with, mainly mild and stainless. Surprised though that my local Total tool has the welder I am looking at for $50 less, so i will support them. The $50 will go some way to the TIG handpiece as well. Yes, am aware the gas is different. Wil be using straight CO2 for the MIG at this point I think.