At 60mph with all the aero mods I appear to have acheived 52mpg without drafting. I can't believe it. It's unreal. I then took off all the temporary mods except the rear skirts and got 39mpg at 65mph on the way home. Shows you how much the mods, driving speed and wind speed affect FE.
We ran out of time to get the lights on (that may happen next weekend) but methinks construction of "permanent" removable skirts will begin immediately.
52mpg!