Perhaps you could help me out with this. It's been a source of confusion for me for some time.
I always presumed that Lug and Gaff rigged sails were merely an outdated means of getting more sail area lower, and that with the advent of advanced sails with full battens which allow nearly the same shape without the added weight aloft and necessary halyards and lines for the additional spar both lug and gaff rigs require, that no one would use them. Despite this, I see these rigs on a number of boats, especially small craft. Obviously they seem like good rigs to a number of people, almost all of whom know far more about this than I do.
Could you point me at some reading so I could better understand why?