Rich S. wrote:

All's I know is that my elliptical-winged Emeraude (same wing area &
airfoil) is a LOT more efficient than those Hershey-bar RV wings! And I
holler "Nyahh Nyahh" at every one that passes me.

Most wings with elliptical planforms also have twist, to improve stall
performance. This twist changes the loading, resulting in a non-optimal
loading.