hello, and i apologize in advance for any stupid questions i may ask in the future. i am a TIG newbie, santa brought me a 200dx and coolmate3 for christmas. this is an upgrade from my old AIRCO 200 MCM heliwelder, i used for AC arc only. (BTW if anyone has any manuals etc for this machine i would be in your debt) anyway....not getting rid of the old airco...it is so durn cute..and fun to weld with. back to the 200dx, what a machine..i have not ever TIG welded before, or had a lesson, and i seem to be doing ok. having done a fair amout of brazing it took some time to forget my habit of waving the torch when forming the pool or moving it...anyway. thats all for my intro..stupid questions to follow