[MaxHedrm]

The question I have for you P&Gers is how much variation is there in your speed?

My concern is that while you may be saving yourself a few bucks in fuel, you could be causing more consumption overall by interfering with traffic patterns. Not to mention the safety issue of slowing with little warning to those behind you after accelerating away from them. As little attention as people pay on the road these days you are just begging to be rearended. And speaking of attention, I'd rather you be putting all the attention you are paying to shutting things down and starting things to your actual surroundings ... though this is probably a silly concern, since it seems you guys are probably more attentive than 98% of the drivers on the road, it's just something that comes to mind.