Bob,

If youre IQ is 163, this should be easy for you?

Hint: The man was smart and lazy

Well, I had considered Doug's response, but rejected it because if the majority
of time is spent in the steady air and a little time in puffs, it would be more
efficient to trim for the steady air and just head up a bit in the puffs rather
than sail with a luffing sail just to deal with an occasional puff. Plus, if
one is motorsailing to begin with, the puffs are probably not big enough to
cause the boat to round up or throw the boat off course close hauled in the
first place. So, I don't know the answer.