Flux core welders

The other day I had the opportunity to do some welding on my Dart Sport, with my buddies 4 setting flux core Lincoln (the same unit that did all those nice floor welds posted above). I have the same unit, but now I remember why I really want a proper mig welder.

Even though I did say above "You can weld with a flux core!" I will admit it's really hard to do and I'm not a very good welder. If I find myself with a lot of welding to do, I'm going to find and buy a better welder and learn how to use it. The 4 setting jobbie is good for this and that, but if you're serious about doing some nice bodywork I think a small investment in something better is a good idea. Just my 2 cents.