Had a hard time getting Google maps to show elevations. It will show elevations for travel by bike, but was saying something about "outside our current coverage area". But, I looked up Seymour Mountain stats, and the parking lot at the top is at 1020 meters. Mount Seymour parkway at the bottom is not that much above sea levels, maybe 50 meters?
Actually, I was watching the re-charge curve on the mini screen. Coasting downhill in B it was indicating 50% regeneration, but on applying a bit of brake it increased to ≤100%regeneration. One more thing, on my car you can hear the different sound when the friction brakes are activated. I'm not sure I can be swayed from that observed phenomenon.
I admit, you guessed what I was going to say, and finish my "B" story. I like this. Posted via the PriusChat mobile app.