I'd say that half the trip, the part with hills, I got better mileage than I did on the flats. Now if I'd been doing Pulse&Glide on the flats, I would have gotten the same benifit without throwing all the energy away on altitude, so I could have had better mileage there, it just would have been more work that I was willing to give it. Its the combination of hills and a "constant" cruise control that allowed an artifical P&G to exist.