The Lincoln 185 is a great welder. I picked one up and it is totally perfect for my needs. I never welded TIG before. I knew hoe to Stick Weld in 1992, but this is totally better. It has high frequency start, and it is a total no-brainer to become decent on it. It'll start from 1/2 inch away but works best within 3/16" of the pool. I have welded 9 linear feet of mild steel and 3 linear feet of stainless, I do not see any difference (except the way the back of the weld looks (they call it sugar, it looks more like brocolli, I'm not back gassing). Anyway, I managed to weld .040" sheet to 1/8" bar, it took a little time to get the hang of it, but it turned out great. My second inch of welding was decent and my 12th foot was darn good. I could even use stainless rod on mild steel and it worked great. I haven't even turned it above 75Amp and it goes to 185! AC/DC, I can't wait to get started on my custom cold air intake. Not sure if I'll use Aluminum or Stainless.
The other cool part about it is it doesn't seem to matter much how clean the metal is, I welded right over light rust, and it seriously left a beautiful grey bead through the yellowy orange rust like it wasn't there. It does work better with clean metal though.
The trickiest part was getting the heat right, I have thumb control and if you go too hot it burns through, not hot enough and the pool is too small and the bead looks clumpy. The Pulsed control works well for welding next to an edge or when I did the dissimilar sizes together. It's damn fun too especially with the miller elete helmet, no fumbling with manual helmets.
A friend of mine was impressed how fast I picked it up from NO experiance with the tig, but it is just that easy! He struggles with his MIG 'cause it won't start without clean metal and since he is not using a gas shield he has to stop and reclean the metal every inch or so. I don't quite know how he doesn't have any slag, but I don't know how the flux core MIG differs from the coated stick.
Of course this welder wasn't cheap. I am very happy with it though and although I probably won't use it to it's fullest, I think it was worth it.