From: null@void.com   
      
   MIG stainless - you have to "hot-up" the arc and give fluidity.  1% O2   
   in Ar is the best economically achievable for MIG stainless.   
   MIG stainless with 100%Ar is next-to-useless - no penetration and little   
   fluidity (I have tried putting TIG gas (100%Ar) on a MIG welder with   
   stainless wire - that is the limit of my experience).   
   TIG is inherently penetrative - runs perfectly on 100%Ar, as you know.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)