Worth noting that their models on weight vs. aerodynamics all consider steady state cases. When cycling we are accelerating all the time. The weight penalty is paid during accelerations, not so much during steady riding. Not saying their models are useless, but it is always important to consider the constraints and assumptions used in a model. Also, just because they found a particular tire to be 'the best' (without talking about widths, pressures, etc.) for their wheels does not necessarily mean that they will be the best for your own wheels.