Hey Mark,
That is not truthful !
I have done the numbers on the mast way in the past and I've always stated the difference between the two mast materials. One needs 10 to 15 kg less body weight to right a carbon masted F16. At 64 kg Will will never get the alu superwing mast up unaided, he is just too light. He may also be just be able to right a carbon masted F16 in no wind, no waves conditions.
Their tip wieght are equal to alu but could be at least 2.2kgs (5lbs) lighter.
It is more then that. Also the tip weights are not equal between alu and carbon. The Stealth masts should be right on minimum tip weight of 6 kg. The alu mast are around 7.5 kg depending on the fittings used.
A well designed carbon F16 mast should be about 4 kg lighter then a well designed and fitted alu mast.
Wouter