[Richard]

You do not have the ability to change the pressure in the tag air bags. I do not understand why the measurement in front of the drive tires is so different from the measurement behind the tag. Have you measured the ride height in the front?

Someone welded on those wheels. I am not sure if they are helping or hurting.

You can put the coach in LEVEL mode and raise it to clear tight places.

Kids bubble solution is your friend when hunting air leaks. Be sure to crib or support the coach when getting underneath.