Boxes are empirical measures of e and q in eight eclipsing CVs, with data taken from Table 1. Ovals are more uncertain measures of e and q in four superhumping X-ray binaries; these serve mainly to stress that low e implies low q generally. The fitted straight line is based only on the eclipsing CVs. (Figure 1 from Patterson, J. 2001, PASP, 113, 736.)