Sweet! Another work of art and very inspirational!
I gotta ask though, how do you set up the welder for those perfect butt welds? Whenever I have mine set-up (low voltage, low speed on the wire feed), it still blows through sometimes. I'm running a Miller XMT 304 (MIG-mode) using Argon gas, and have it set to 12.5 V on the juice, and 17-18 IPM on the feed.
http://www.airgas.com/browse/productDetail.aspx?Category=229&product=MIL951343
It's an awesome welder... so yeah, I'm spoiled having the Hobby Shop at my disposal. But seriously, I've been following Eric's advice (another thread here on the forums) and doing fairly well, but the thinner stuff is still giving me fits.