To give some perspective to these calculations. If we assume that it takes at least 85 kg (=me) to right the alu masted F16 in ALL conditions including no wind and perfectly flat water (a very demanding condition) then it requires 67 kg to right the F16 with a carbon mast compliant with the current rules and a 61 kg skipper if we lower the tipweight rule to 5.00 kg.
So we are limiting persons to 61kg who can sail the boat single handed. There was a lady at the A class Nationals at Mumbles who was 58kg - so she cannot sail the boat !
Edit to add - Wouter, do you calcs take into account your height - if so we are limiting the boat to persons of 61kg the same height as you ?