BIkearound, hope I didn't sound like I was shooting the messenger. Testing tire rolling resistance and tire pressure sounds so incredibly complicated I wished they would have shared how they came to their conclusion.

BTW, after signing off earlier I did what I did do best which is muck around with bike parts and noticed on a spare Michelin tire, a graph recommending pressure per rider weight. I never saw this on tire packaging before and thought it was coincidental after just looking at the article and graph.