Cartoon oval quality
Only relevent when oval (default) helices is turned on, see Cartoon_Helix_Settings. set cartoon_oval_quality defines the visual quality (the number of points defining the oval) of the helix. The default setting is generally optimal, increasing improves quality marginally, where as quality drops significantly if the value is decreased a lot (see the black edges below). The difference between 100 and greater values is negligible.
set cartoon_oval_quality, <number> #default setting is 10