Once while at NGLA speaking with Karl Olsen he did mention that the greens along the 18th, 4th, 15th, 14th corridor were parlticularly susceptible to wind damage. I don't think he meant to say it was an architectural problem only that the club wanted the greens fast too far into the fall and such. He thought they were in a particularly dangerous wind corridor. He did say if he didn't raise the heights to protect them he could lose them.