This is fascinating! My BF and I do a lot of hiking AND biking together, and I've noticed that when we both did the carbo-loading before hikes that he could just go and go, and I've crashed. Over and over. It's happened more times than I want to admit. I couldn't understand why I was bonking and he was fine. Now I know! This is the first I've heard of this - now I need to find out the best way to fuel. Should we avoid the carbo-loading before (what? no pre-ride pasta dinner???) or do that AND fuel more frequently while we're riding? I'm SO glad to know that it's not just me feeling whimpy!