I've used a spool gun with a MIG setup to weld aluminum. Way easier in my opinion, as I'm not really coordinated enough to control a TIG gun power level and filler rod at the same time. Something about walking and chewing gum at the same time. wink I have enough trouble with OA, but the spool gun worked pretty well.

Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.