[strat61caster]

fwiw chatted with an old friend today who crews/tire tech for some sports car racing (they'll fly him out to Sebring, Daytona, etc) and it's not uncommon for those cars to be sent out at like 22 psi and the drivers are supposed to keep off the curbs for a few laps until they get heat in them. Said they'll go as low as 18 psi, targeting 26-28 psi hot. Didn't poke too much as to what tires or such, real racecars have different problems than street cars at grassroots stuff, but thought it was interesting.