When I watch the pros on TV, some wear pants with a V shaped notch in the hem. What is the purpose of the notch ? Is it just fashion ? It seems to me like it may allow you to wear slightly longer slacks that cover more of your socks and the top part of your shoes to avoid the "high-water" look. I saw some Nike's at Golfsmith and they looked pretty sharp. Are the notches on pants exclusive to golf ?