Ken Noland would use concentric circles; he'd want to get them in the middle [of the painting] because it's the easiest way to get them there, and he want them there in the front, on the surface of the canvas. If you're that much involved with the surface of anything, you're bound to find symmetry the most natural means.
p. 118 - 'Questions to Stella and Judd' - September 1966