No discussion or conclusions sections?
I would like to see a plot of total energy throughout the test. Use an approximate mass and calculate kinetic, potential and total energy to illustrate how a low speed at the top of a hill is different than a low speed at the bottom and that one could use the potential energy stored to compensate for the reduced power output on the descent... kind of like banking power.
Furthermore, are all watts created equal?

One could argue that working hard on the descents is foolish because more of that energy is going into a high drag condition (high speed) instead of using that energy for the lower speed sections like the climbs.
You might enjoy reading these, for hilly time trials uneven power is better.
Variable versus constant power strategies during cycling time-trials: prediction of time savings using an up-to-date mathematical model.
http://www.ncbi.nlm.nih.gov/sites/en...ubmed_RVDocSum
Our findings confirm that time savings are possible in cycling time-trials if the rider varies power in parallel with hill gradient and wind direction.
Acceptability of power variation during a simulated hilly time trial.
http://www.ncbi.nlm.nih.gov/sites/en...ubmed_RVDocSum
finish time for the variable power trial (3670 +/- 589 s) was significantly faster than that for the constant power TT (3758 +/- 645 s), the 95 % confidence interval for the percentage improvement being 0.4 to 4.3 %.