I just read the entire thread. What jumped out at me:
- The article referenced in the initial post represents a very simplistic view of tire dynamics
- Tire dynamics is anything but simple
I sure am glad people here aren't afraid to ask questions and challenge assumptions.
I can offer some anecdotal, seat-of the-pants data. In the interests of maximizing rolling efficiency and fuel economy, I ran my Fit's tires up to sidewall max of 51psi. Wet traction suffered; the front of the car lost traction in turns much more easily than it had at the recommended pressure of 32 psi. So I lowered the pressures to 45psi, and wet traction improved. That pressure represents the traction/rolling resistance compromise I am happy with. YMMV.