Rick,
Following this thread with some interest, having asked about the Hooter on the open forum, some interesting points raised there too. I believe the only way to establish which headsail is best would be to race against F16 Taipans with your Hooter, as Wouter says you can request to do. You may not be counted in the results, but the results will speak for themselves. If you consistently beat the F16 compliant Taipans, your theory will have proven itself, perhaps then the F16 class will re-look at the spinnaker rule.
I believe it would be in the best interest of the class to maximize the speed potential of the boat, especially since the hooter probably costs only a bit more than a standard assymetric to set up.
The issue of handicapping would have to be resolved, though. If ISAF & Texel rate the sail as jib area, you`re stuffed.

Cheers
Steve