[skidlids]

There's a difference beteen Road and Track use
Pirelli have always recommended lower pressures for Racing, when I was a member of the Pirelli Riders club using Diablo Corsas the tyre pressures recommended were Fr=31psi and Rr=30psi or reduce those figures by 1psi if using warmers.
Racing focuses on a narrow spectrum of conditions, unlike road riding
differences can include Passengers, Pot holes, drain covers, level crossings, snow, ice etc etc