interested too
poking my nose in because I would be interested to know this to. From what little I learnt 25 years ago, seem to remember that one reason then cited was to avoid the end effect of the wing, ie circulation falling off the end of the wing, so it increased the efficiency of the wing by reducing a negative practical correction to (potential flow) theory. Presumably that could be equated to same lift at lower aoa and therefore same lift for less drag. Dihedral effect would also influence stability as mentioned above by giving a small added force at long radius arm, ie tip of wing.