Havasu, beahhtches...we did end up spending a lot of time passing through the channel and so there's more idle time than normal, but to offset that, we did take another run up towards Needles (about 30 miles north), and of course down by the dam (20 miles south), along with some ballasted sets. Paid as high as $3.69 for Chevron Super at the marina (stupid, I know). It's cheaper in Cali right now than in Arizona (first time ever?).
End result for five lake days was:
16.0 engine hours and 48.16 gallons, for 3.01 gph or $10.30/hr. Pretty dang good, huh?