[Naja]

Jim -
I've been 'out of touch' since about the time you posted the question, but I contacted the tech people at Yokohama and Bridgestone (the 2 sets of tires that I have - the Yokos are very similar to the Michelins you have) about tire pressure a couple of years ago. They both said almost exactly the same thing. According to the 'standard' formula for figuring tire pressure, taking into account my weight (mine is a HEAVY Cobra) and weight distribution (mine is 50/50), the formula indicates tire pressures below 25 psi. But, they said that they would NEVER run a tire below 25 psi, so their recommendation (both companies) was to run at 25 psi.
Regards,
Frank Newman