Wow, thanks for such a detailed writeup on your trip! The thing that interested me the most, though, was the large spike in MPG when you were running 93 octane. Now, I know that there is already a HUGE thread debating this already, so I am just making the observation. Although, I might just have to try a tank of 93 on my next fill to see how my Focus likes it.
Again, thanks for all of the information and pictures (especially).