More Welding Help needed

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I'm trying to a better understand welding with my millermatic 175.  Specifically, I'm trying to relate the settings on the machine to what I learned in welding class regarding wire size, current and voltage.I'm try to find out how to relate the knob positions for the Wire Feed Speed (WFS) and the Volts.  The dial for Wire Speed goes from 10 - 100, how that equates to currents/amp is a mystery to me.  The amp range from the manual says 30-175.  I can't seem to find a good correlation.The voltage knob goes from 1-10  with a maximum open-circuit voltage of 30 volts.  However if I refer to the Volt-Amphere curve it show position 10 starts at about 20 volts but position 5 starts at about 24 (constant voltage machine - 'relatively flat curve')I've asked Miller but so far all Ithe information I've received is this chart (with the caveat that I need to measure the actual wire feed speed:Wire Feed  Speed To Amperage ChartWire Type / Transfer Mode Carbon Steel / Short ArcWire Size       0.023"IPM per Amp    4.2WFS               150Amps              35.7           Help!Last edited by reefera4m; 11-13-2008 at 10:13 PM.
Reply:What is the maximum wire feed speed?  You may have to pull the trigger for 10 seconds, measure the wire and multiply by 6.  Or pull the trigger for a whole minute.5" per minute of .023 wire is 1 amp.2" per minute of .030 is 1 amp.Give or take....DavidReal world weldin.  When I grow up I want to be a tig weldor.