From: null@void.com   
      
   You are very welcome, regardless.   
      
   I have heard of "salted" claims.   
   It can be a risky thing to do.  In one jurisdiction known for probity,   
   if falling out of a helicopter is surprising, for it to deny the chance   
   for two people to explain themselves in court is an astonishing   
   coincidence.   
      
   A rod-mill is often the precursor to a ball-mill.   
   A rod-mill is valued for giving a very narrow size distribution - a   
   consideration including that it will not "over-grind" friable components   
   within a mineral.   
   That size is "larger" - seemingly often like sand on a beach.   
   A ball mill can go much smaller.   
   Taking rod-mill output as the ball-mill input gives a good "level"   
   starting point for ball-milling.   
      
   I will leave it at that.   
   Neither experience nor hearsay enables me to go further.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)