Yes that's fine.
But would you say that you have a hard core group of distance racers who want to race F18's and that you as a regatta organizer can count on at your event year after year?
If people are given a choice... they want the fastest ride available. (Mike Hill's point) Before Mike Worrel flamed out he believed that the events growth would only happpen on an 18 foot platform for two reasons. 1) Popularity in the EU. 2) More teams could form that fit the weight requirements of the 18 foot boats Ultimately he saw that growth was likely in the 18 foot boats.
Therfore he intended to force the issue by running the race exclusively on an 18ft platform. Many teams strongly disagreed and planned to sit out the W1000 and the Tybee 500 was born for these guys. In the end, Bimare made the best offer of charter boats with the 18HT and the rest is a sad history. The Tybee 500 continues on primarily focused on the 20 footers.
Have things changed?
Is there a ground swell to run the event on 18 footers?
Is there still a key core group insistent on 20 footers and opposed to the 18's?
Is there a groundswell to run the event with just one class to focus on.
Can the marketing work with several classes overlapping at the finish?