I did a similar upwinder, downwinder dealio from Lassing to Gandy.
Took about 2 hours, maybe less (I didn't have on a watch).
I wouldn't have done it, except the winds were pretty light, Jay, when I first got to Lassing -- not 17 like we thought, more like 12 (at first... then it picked up on the way back).
I was bored in the 12 knots and decided to do a sightseeing session.