Continuous or Tapped Mig 180 output?

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Do any of you with a Lincoln 180 Tapped output wish you had the adjustment capability of a "C" system?  Am I right that "C" output is best if working with very thin stock? At what thickness of stock does it matter?The Lincoln Power Mig 180 is about $150 more that the SP-180T.Thanks,John
Reply:Hello, I have the Lincoln SP170 with tapped adjustment for the voltage, I have found it to be great for thin material, Recently tried it on some stainless steel "Band-iT" strapping, This is 3/4" wide and 0.025" THOU thick, with a little ajustment I could do a lap weld,Nice flat profile and full penetration,I was welding about a 3" length at a time but it showed no signs of burning thro'Best regards from the U.K.  Gordon
Reply:Usually the tapped models will work OK.But the "C" (continuous) models let you fine-tune the voltage a little bit more.  As well as let you fine-tune that voltage level WHILE welding (if you have a person to adjust the knob or if you are doing some test welds  right next to the machine and can reach a hand over and adjust the knob while welding).Your call as to which to get.  The best laid schemes ... Gang oft agley ...
Reply:So, do you all think the "extra beefy all aluminum" wire drive on the Power Mig 180 is worth the extra money?  Or do you have or anticipate any problems with the standard plastic/metal  drive unit on the SP180T?http://content.lincolnelectric.com/p...ature/e724.pdf