That sucks about the low turn out for the Bash, but I have a few ideas. This is just from my point of view. I knew nothing about the bash, so my first suggestion would be to post it on some of the other tracks forums so that some of the semi-local driver that dont read your forum all the time would know about the race, as i said if I would have known about it I would have come (at least for 1 day) that is my other suggestion, a lot of ppl (again like myself) dont have the extra money to spend on a hotel, for a 2 day event, and a lot of other ppl that have kids in sports and such can't spend 2 days racing. Seems like last years format of having the 1 day bash drew a lot more drivers. That is just my opinion.
If you decide to have a fall bash let me know and I will be there, at least for the "main" day if you decide to make it 2 days again!