I wonder why they chose those classes. I can think of two popular boat makers that are missing. J-boats, and C&C. And I don't think it was because of the publishing date. C&C has been around forever, and the Zuma came after at least the J-24, if not the J-30 and J-22.
J .P. Clowes Eastern Great Lakes Regional V.P. DSI 14083
I have no idea, but it's the only collection of emblems I have found. And he seems open for new ones because he accepted my entry for the Sailstar "Starfish".
I haven't been able to get the OP's link to work. I found one link (maybe that of the OP when I tried it over the summer) that linked to instruction manuals or brochures. It's fun to be able to look up some of the insignias on boats we see in the harbor ("Who was that masked man?!")
I sent them information that I would be willing to be the contact for a Sundance 20, and although I got an e-mail reply from them the sundance insignia site still does not bear this contact informtion. I don't think there are many sundances around as a google search only turns up a couple of hits each time and most are historic... ie they have been online for some time.