I recognize you are just one dealer, but I couldn't resist the chance to make those suggestions to the first person associated with Tartan that has posted to Sailnet. Maybe if you could network with the other dealers you could speak collectively to Novis and send them a reality check.
It is nice to hear from one of the dealers and it sounds like Tartan is lucky to have you representing them. You might consider checking in at Sailnet from time to time since Tartan boats of all vintage are a frequent topic of inquirey here.
I missed the Annapolis show as we were out sailing that weekend. If you were there and got aboard the 4300 I'd be interested in hearing your impressions (especially if you went for a sail!)