It looks like Daisy with only three blades delivers a similar power (over 1 kW with wind speed being roughly 9.5 m/s as mentioned on a comment of the video below), all things being equal. Perhaps a part of the high pull could be converted into more torque?
@Rodread, do you plan to implement again two rotors with 3 rigid blades each,to obtain a possible far higher power than for the initial two rigid rotors (600 W if I remember correctly)? Or a larger rotor with the 6 blades?