Is it possible to run NR 211 with my millermatic 250X wire machine?  I ran out of mig wire and had a spool of 211 layin around so i figured id try it out. I know how to run 211. But i use it out in the field with a little lincoln electric 140. I switched the cables +\- to -/+. But doesnt run right, actually doesnt feel like anything changed. I ran both ways and it looks, acts, sounds the same. Not clean at all. Its lincoln electric innershield NR-211-MP .035 wire. Trying to run it with a miller millermatic 250X hooked up 220V. Thanks for the help everyone.