ive just bought a Jasic 180 SE , which is an invertor stick MMA welder with scratch TIG possibilties. Which to be honest is totally aaaamazing compared to the oil cooled Oxford its replaced. So the long winded question is, how would you rate a conventional mig against one of the invertor mig welders? which would you buy, ive got a budget of 700 quid or thereabouts.Thanks in advance .Pauly.