I have a 150 on a S37. In my area, mostly gulf coast, this works well. It is too much sail to partially furl when reefing is necessary. I have a 100, which I will not hesitate to change out should weather indicate. With that being said, every time weather has caught me, have been sailing with the 150. The thunderstorms come up quick in the summers down here. As to how much I sail, quite a bit. 3500+ miles this summer.