yeah, thanks Aaron;
you are right; one hand is great for tacking; but if it is alum or s/s then I won't be able to tack it anyway. and I am looking at doing a s/s exhaust and modifying an alum intake manifold etc. If/when I get around to it I hope to put a turbo on this thing and fab up a custom s/s exh manifold etc etc
its largely a matter of economics; I don't think i can afford to have EVERYthing I want LOL;
the setup for doing s/s and alum with the mig is a bit pricey. I have actually tried both with the mig with mixed results, but S/S - especially thin stuff - will be tricky with the mig. And a lot of very thin material as well. I am looking at a TIG setup that will handle all kinds of work but ....... yup. $$$$. So I am gonna put the MIG up for sale and it will go toward the new setup. They have told me that one shielding gas will do most of the work I want to do so that is a nice surprise instead of having to change (and PAY for!) up to THREE different bottles....

so if it sells then it does and if not then not a big deal........ at least I tried.