Average from Safety Harbor to SPC with the AC off = 43.6 mpg. (turning off the AC makes a HUGE difference)
After 8 runs, average was down to 25.7!
Trip home with A/C on and driving a little faster averaged 37.5. Overall average for the day was up over 30, but I forgot to look at it after I got home.
Since I just filled up... I'm going to try to "recover" from the autocross and get up to at least 38 for the tank... driving to SC for the Lemons race on Thursday, so it will be all highway miles, should be doable.