What do u think? I like the fact that there is only one adjustment--gauge of metal and voltage is automatically set.
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200318739_200318739
http://www.northerntool.com/webapp/wcs/stores/servlet/product_6970_200318739_200318739
Another reason beyond the better weld is flux core does not lend itself well to thin sheet metal welding, while gas w/solid core does.