I just found this forum and will respond to this Tig question in a while. First all check all your gases that you can yeS with mig
NOT JUST 75-25 BUT 98% ARGON AND 2% OXY. BETTER WETTING AND less splatter. tHERE ARE SEVERAL MORE OUT THERE were talknig about plain carbon steel mig.

Tig can be used in areas that mig is possible but not recomended.
The tacking of parts and items plays a large role in the clearance and quality that you are looking for.

Both processes compliment each other. You can pick up a DC TIG OR A AC/DC TIG UNIT FOR UNDER $1,500.OO It all depende on the quality that you want. What are you mainly going to weld. How clean does it need to be. A pulse unit is nice but not always needed! You can also get this feature on a mig maching for aluminum or standard steel.

I weld for a living on all different types of metals every day. I use bot MILLER AND LINCOLN. Each has there advantages and dis advantages.

I do not know how to place pics or down size a picture until then. I can only talk about it and not show you the difference.
I would take a course in tig welding. See what the school has to offer. TRY the different machines that they have. See the differences between them. Talk to the instructor see if he or she can lead you in a direction for purchase.

If you live in the San Francisco bay area call me. Hang out for a day. I could show you some real wild welding from aluminum to titanium done in the field which would blow your mind.

I would hate for you to buy a maching and need more power but the machine you bought doesn't have it.

This is my first post on this forum I should of started out and said hi first of all. I got carried away. sorry

ROBERT I will just spin away for now