Dropped them all to 38psi, stick gauge matched the readings on the screen. Don't want to drop them that much as it's warm now, I'll watch them and see what transpires.
Nitrogen has little benefit and is a waste of money. Plus, I'm sure it's not 100% anyway (as in the video ^) therefore doesn't have much or any benefit. Dealership just wants you to go there to get them topped up just to sell you more crap.