It comes down to the person sailing the boat. To many people have it in their heads that a few kilo's makes a BIG difference...
I fully agree with that statement.
We are seeing a rather flat dependence of performance upon overall weight. A few kg either way is simply too small to result in any measureable speed difference. Of course 10 times "a few kg" resulting in a difference of say 50 kg does eventually give rise to a measureable difference but the Taipan F16, Stealth F16, US Blade F16, Aussie Blade F16, Falcon F16 and Aquaraptor F16 are no where near that much apart. These boats are all enclosed in a range of different boat weights spanning only 5 kg and that is simply too small to matter.
I also think it to be really funny that sailors will think nothing of say 30 kg differences in crew weight and then fuzz about 3 to 5 kg differences in boat weight.
Wouter