[Christ]

I find that it helps some if you're going from a higher speed zone to a lower speed zone, to shut the engine off and coast down. I also find that (like you already do), shutting off and coasting to lights helps. If I know I have to go around a corner, I also shut down and slow without using the brakes as much as possible, then restart just after the corner, and accelerate back to reasonable speed.

So it might not really be P/G, but it's close, in that you're gliding down from speed, then reaccelerating.