Funny, there was the F24 and F27, then F28, then F36, then F?? but always bigger and more expensive.
Then a guy down here in the Keys had a small tri built by local Tiki Watersports here that was designed by Marples and really looks neat -- small, light and fast.
Perhaps going smaller and with better performance could attract more beach cat folks as they get older as a stepping stone to the larger tris.
Rick