Just one point about Alloy masts and I don't want to steal this thread but Alu hasn't changed for basically the last forty years but Carbon has come on leaps and bounds in the last twenty so to say the Alu is more robust isn't quite true!! and as for costs if by any chance my Carbon mast did fail it would be a hell of a lot CHEAPER for me living in the UK to purchase a JP Carbon mast than to import an Alloy Superwing from Australia. There we go I've said my bit about Masts as for the rest of a F16 I can guarantee you would not have any second thoughts after sailing one.