What I seem to be finding is that topography has as big (or larger) of an effect on FE as technique. On the flatlands of Illinois (my home state, BTW) I can see where you could reproduce those numbers anywhere just by applying the exact technique, but my experience here in the S.F. bay area is that the exact same technique gives very different results depending on where you use them. I'd guess that bluecivichybrid would get very different results on different sections of highway using the same method (on some he would get worse, on others he might do better). So, a bay area driver has to modify his/her technique to match the terrain, and in many cases you're only going to get 50 mpg regardless of your method.

My commute is 25 miles of 4-lane, heavy traffic. Dropping below 60 miles per hour is not an option, even in the far right lane (my limited testing indicates that speeds below 60 quickly result in honking horns and flashing high beams). I can P&G and DWL with speeds between 60-70 or 60-75, but I still don't beat (by more than 1-2 mpg, and SoC is dropping) what the car can do on it's own with the cruise control set to 60. Even on cruise, the car does a good job of maximizing the downhill sections and using the minimum fuel flow level to maintain speed.

In non-freeway situations, it's a completely different story. My technique here is to look ahead to the next 'waypoint', which is usually the next stop light/sign, a sharp curve, stopped traffic, or even the crest of the next hill. I then work back from there to a point where I think I can reach the waypoint by coasting, possibly with some EV assist help. That point is usually about half-way between my current position and the waypoint, but not always (hills can move that point significantly). I then 'pulse' to the 'coasting start point' and coast the rest of the way. The intensity of the pulse depends on the distance to the coast point. Using this method I have been able to get 55-65 mpg, again depending mostly on terrain. I expect that when it warms up, I'll do even better. Unfortunatley for me, most of my driving is on the freeway, so I don't get to practice it much.

I'd love to hear about this! As I posted elsewhere, it seems like the warmup period is what's really killing my overall commute average FE. If I reset the trip 10 miles into my commute, the trip MPG jumps from 51 to 62!