When the boat weights 125 kg it will have a TR rating of 104 but it will NOT enter as a F16 to that event but as a Viper and will not sail in the F16 class of that open event. It will sail in the open or own class.
Isn't it true though that the skipper may
choose to enter an open event as F16 and take the 101/102 F16 rating? I'm thinking that Viper owners may consider that their boats are actually just as fast as other F16s and prefer to sail to what they consider to be a more realistic rating in order to promote the view that the Viper is fully competitive as a F16.