Watch the puddle, not the spark. Try to keep the puddle on both parts by moving the arc to the smaller side. You'll need to learn to wash the weld in patterns to get neat beads, but sloppy should stay stuck too.
My welds look like pigeon droppings.
Maybe there are 'how to' articles on the net? Or eBay any textbook.
And like the cab driver said to the violinist when asked "Do you know how to get to Carnegie Hall?" The driver replied "Practise!"
So far, I've had more experience thinking than I've had brewing....you don't think they are mutually exclusive, do you?
72 batches so far,
48 wine, mostly Loquat, peach, plum, prickly pear
23 beers and ciders
1 Tequila, from a prickly pear wine experiment that didn't work. I call it "Prickly Heat"