Thanks for posting the link....
I found the explanation here.
PS. The same study explains why shaving short hair (one day growth for instance) is better than long hair (two-day or more).
Are you referring to figure 4, about halfway down the study which shows the more orthogonal the blade's angle is to the hair, the lower the failure probability?
I'm not sure what "better" means in this context: better blade longevity? More comfortable shave?
I can visualize more fractures producing more tugging, but the question I have, is when these fractures become significant. For example, do they mean that the blade will feel tuggy after the first pass or the 4th shave?
Of course, at the end of the day, we learn what works for our face ;-)
... Thom