I finally dug my arc welder out yesterday and had a go at running some practice beads across a piece of steel. I used 3 different widths of 6013 electrodes and experimented with different voltages, which goes some way towards explaining the variation in quality. Lack of experience and skill explains the rest, but it was great fun, and I got one ‘peel’. Yay! I need to keep practicing if I’m to try my hand at scrap metal sculpture again.