This past year the Tybee 500 invited basically all sailors including the F18's.
I don't think that's a fair statement given the lack of information that was available about the race this past year. This year's competitors were predominantly made up of sailors that had competed at least once prior and/or knew enough people to know that the race was reliably happening. If I didn't know all you guys and stay as plugged into this scene, whether or not I was sailing F18 or I20, I would have trouble justifying the time, effort, and money on a campaign for something that didn't present a reliable and assured presence.