I think raising the minimum weight will end up in breaking up the F16 class, especially if Nacra will be able to provide enough of their Olympic 17s
Almost same price and not too much difference in weight then...
I chose the F16 besides I wanted to enter a challenging class that, although I´m a light Helm (68kg), I ´m able to right my F16 solo, so even whem my Helm doesn´t got time, I don´t have to stay on shore. IMHO I wouldn´t be able to right a 125kg boat without aids.