a couple of addtional points regarding spoke aerodynamics:
1) the spoke drag force is complicated by the fact that it's speed a top of wheel is 2x the bike speed and 0 at the bottom. With drag force being a square of the velocity the integrated wheel force from the spokes can be high. I know some of the earlier wind tunnel testing did not account for this.
2) with bladed spokes one has to be very careful to line them up in the plane of the wheel. Even a small angle (a few degrees) out of the plane will more than negate the aero advantage and in extreme cases be much worse than round spokes. A cross wind can also be problematic.