When you have finished doing you evaluation of the iteration I suggest that you try adding a few cuts in the wing FB along the wings spanwise and following the line of the wings. Into these suggested knife cuts fit some glue covered balsa strips, (cut to cut depth from 1mm Balsa sheet).
If you use a clear liquid foam safe glue, (Craft glue), you will find that when dry the wing strength will be phenomenal. A strip of cloth tape along the LE and you will have a very robust and damage resistant design!
Just what works for me!
Have fun!