Tim,

My most recent tank has been averaging 51mpg and I do mostly stop/go driving in town but I always try and take a route with less stop signs and lights. Pretty much do what you have been doing. No FAS except if I get fooled at a light then I shut down the ICE. I beleive that my mpg could be a lot better if it weren't for the new reformualted fuel that Massachusetts has mandated, replaced MTBE with 10% ethanol. Not sure if you have the same fuel where you are.

My tires are at 40psi (Bridgestone B series) and that seems to help a bit.