you know about the tire presssure chart? 60psi on 32mm looks like a good baseline for you. Personally I think this chart is a little low for what I want on the road, but works well for gravel. Or do what the CX guys do - lower pressure until you hit a rim, then bring it back up a little bit. ;-)
I do go a bit less on my front tire if you want more comfort. If going through water shows a thinner contact patch on my front tire, I figure its over inflated...
