What tire pressure do you guys use?

[Matt_370Z]

I have a 2010 sport/touring with the stock Bridgestone Potenza on 20" wheels. The cold max load rating is 51psi.

I know from past experience with my cars that the cold rating is usually a little high to keep a tire at and that having slightly less in the rear usually improves handling. All I can get from the manual is the general statement to inflate to whichever cold rating. I've noticed TPMS doesn't start bugging you until the pressure falls below 30psi which is of course extremely low.

What's a good general pressure that you guys keep your tires at? 43-48 or somewhere in there? Do you keep them all the same or slightly lower in the front/back?

I should add: this is just used in around town/freeway driving (not the track). I'm just one of those who likes to "do things right."

Thx in advance --
Matt