Quote - This might spoil the ability to set a controlled number of sections.

The main trouble would be with the mapping.  I can try adding the sparse link type as an option, if you want it.

Saving polygons is always good, but, sounds like the downsides outweigh the up sides. Choosing the number of sections is handy, and you don't want to mess up the mapping. If its an either/or, probably best leaving it as is, but if it can just be an option, it would be handy.