Vince -- Trust me -- I suck.
You're right - hardly any filler --- only dipped as I had to and then ran it as far as I could. The fit up was really good and I tacked it tight and used light taps to keep the gap closed.
A corner weld like this is probably the easiest weld to make... and SS welds really nicely.
I was really trying to show that with just "enough" heat -- you can really control the warping. On this tank -- I wanted NO warping if at all possible.