4043 practice beads on 3/16 6061. It's what I have to practice on.  Miller #17 torch 2% lanthanated tungsten, furick pro cup #8 balled tip from letting the tungsten do it's thing, 3/8 stick out, 165amps. Feeling pretty happy since this is my first go at this. Thanks to Jody for about 25 hours of watching his videos over and over every night here trying to learn. Any feed back would be welcome.