Since the links are dead, I have a few questions. First off I'm a larger fella, both tall and wide. Are they going by weight? Height? Width? I seem to have more of a problem with my knees getting smashed than I do with rubbing elbows with the person next to me. I have no problem with the policy, as I have also had people violate my bubble when flying. I just want to know how they are going to measure the restriction. If need be, I'll fly first class.