Interesting discussion and thanks for the links. Our daily wind speed average is ~15 mph and gusts to 20-25 is common. Direct head winds suck but the tail winds are wonderful and make the struggle worth the price. My normal route is straight into the wind along the ocean and tails back, this translates to 10 out and 30 back, great stuff. The difference between wind and hills is that you know the distance to the hill top.