New to Fifth Wheels, Couple Questions

I should be able to check the clearance again possibly today or tomorrow. I checked the pressure in the bag last night and it was 45 psi. I know it's supposed to be set specific to the trailer by the indicator but in doing some googling it looked as if 80psi was the pressure that others had with a similar tongue weight. I could have easily lost pressure over the last week too.

So it doesn't sound that there is any recommendations for additio am clearance with air hitches just the usual 5.5" min and 7" optimal.