Good welding beads are visually worthless.  Proper  welds are only applied where structural integrity is necessary.  I  run hot and cold beads for the visual effect I want. The more heat and spatter the better. Metal warping matters little.  I  use an ac/dc stick welder and set the amperage and polarity to get the visual effect I want regardless of the welding rod type or size . I use mild steel and cast iron because  they are more ugly than beautiful, physically heavy and highly susceptible to corrosion.   As sculpture material they mirror my feelings about life. The only rules I follow are to not stand in a puddle when welding and drop the welding hood down in time. Enough said.   

                Steven Backlund