Scooby
What configuration of each boat would allow level racing for the one up F16, Nacra F17 and a one up FX1.
None, they all rate slower than a F16 single handed. (SCHRS).
F16 is 0.982, Inter 17 EU 1.067 (19sqm), FX1 1.036 and I assume the F17 will rate a little faster than the FX1.