Saving gas on big hills

Going uphill is the painful part of hypermiling.
The best that you can do is find the most efficient way to accomplish
the job at hand.

My strategy:
* Resolve not to look at the instantaneous MPG readout,
it's gonna' suck and all it'll do is make you depressed.
* Pick up as much speed as is safe/sane on the flat.
* Decide what your desired minimum climb speed will be.
* Carry that pre-hill speed as far up the hill as you can.
* For as far as you can, strive for "no arrows" climbing, no arrows
going to or from the HV battery, most efficient way to use fuel/move
the car forward.
* If you can't maintain your desired minimum speed, use more go-
pedal and take power from the HV battery, after all that what it's there
for.
* If you run the HV battery down into the red/magenta bars, you will
slow down considerably as the ICE works hard to both propel the car
and charge the HV battery. (The ICE is just a 1.5 liter 4-banger and its
going to be making a lot more noise that is typical, it's OK but
unnerving.)
* Coast over the hilltop, hopefully at your desired minimum speed, pick
up some speed and let the gravity rush recharge the HV battery.