re Futura 101

[starfire]

I read somewhere on a Forum not too long ago that the 101 is in fact 97 l vol; is that so? ...In which case, how different is it from the 101, performance-wise for the 71kg sailor in 5.3-6.3 conditions? Need to determine which one would suit me best given I very much enjoy the 105 Hyper. Also, come to think of it, do I assume correctly that the rad concave Hyper is better in flat water than the Futura and just as fast?

Many thanks