Don't over-do it on the clif bars like i did... still have a box around here, yech. I've tried eating these fruit2go things... decent. Shots are good. A lot of this stuff is so bad for your teeth. The best thing is not to let yourself get too hungry, keep snacking on tiny things stashed about the cockpit. If you don't keep glucose flowing you'll want a big meal and that will slow you waaay down. I've been trying to get some of the hammer perpetum to try... after a few hour you need to eat proteins otherwise you'll turn into a noodle.