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That's true, inasmuch as a HED3 is much better than a wire spoked wheel with the same rim and a much smaller area of round wire spokes, but the default aero steel spoke (Sapim CX-Ray) has pretty good aerodynamic performance across a range of yaw angles, and you only need 16 of them to make a usable front wheel. The MadFiber spokes have square corners, so they will have a lot of wake drag for their thickness, and will stall at a very low yaw angle. Just a bad idea all around. At least Lightweight manage to make their spokes more or less elliptical, and line up most of the fibres with the stress direction.

and yet people use disc wheels....