John, As most Capricorn's come under the F18 class min weight they are generally required to carry correctors. Without having the boat weight and correctors marked on the cert its not possible to regulate the compliance unless you do a complete weigh in of all boats.

Why make it harder than you have to? Simply do an initial full measure of the boat including weight, note that weight and required correctors on the cert and then unless the boat is measured again or weighed at an event it needs to carry the correctors shown on the cert. Then there is no cause for any questions over the compliance of the boats weight.

All this discussion isn't so relevant for the F16 though: they are all over the min weight anyway