I LOVE the first one and the tweaks you've already made to it...such a cool ride. Maybe someday I'll be in a position to do it, myself. As an asthmatic that would be an especially meaningful experience.
What's amazing about this ride is that people ages 16 to 70 something do it. It's a nice relaxed cross-country trip. You can hammer if you want, but why bother? There's ~80 miles of USA to take in each day. I can't wait!