This thread has got my attention and so I looked up this BAC business. I'm still confused though. From what I'm reading you can still at a certain average weight be deemed as having your skills impaired at 0.03% So why is that set as the limit for pilots? Shouldn't it be even lower? I also note that the table indicates that no matter your weight one is only considered "legally intoxicated" from 0.08 at the very minimum if you weigh 160 pounds.