Hmm...Interestingly the Attack tire has the highest coefficient of rolling resistance but not the best grip value, wonder how that grip value was calculated...

I'd also question pumping the tires to 101psi...they are rated to 120psi. In addition, as the author states, tires with widths smaller than 23mm only benefit from decreased rolling resistance when pumped to higher pressure than their 23mm+ counterparts. Therefore, I do not believe the comparison between a 22mm Attack to the 24mm Deda is accurate. If you look at the chart, you'll see that tires with wider profiles (23mm+) are found at the top of the chart.

And wasn't the Attack/Force designed to wear together? Attack very fast wear, Force moderate wear so that they can be replaced together? I haven't tried my pair yet so I can't speak from experience.