Rider info: 150 pounds. Mostly tarmac roads. Occasional gravel sectors (more so during fall/winter/spring due to college location). I seek out dirt paths whenever I can as well.

Mavic Aksium WTS: 90 front, 100 rear.

PSIMET Pacenti SL23 custom build w/ Continental GP4000s: 80 front, 90 rear.
These wheels are new (just two rides). I'm going to start playing around with pressure here later.

My first few rides I beefed the Mavic Aksium's PSI to 100 front and 110 rear. I didn't feel much difference between that and 90/100, so I stopped pushing the pump down as much so I could ride sooner.