Per GY Technical Support when going up in capacity as in "E" to "G" they recommend weighing your RV's tires, each if possible. Take the heaviest tire per axle compare to the weight inflation chart and add 5psi to what it calls for. Example my 02 AVION had "E" tires and I ran 80psi, comparing to the chart I needed to run 80. I upgraded to GY "G" and using the chart it said 80 so I added 5 psi. I ran those tires at that psi for many thousands of miles with perfect tread wear and nice ride. No I did NOT have 110psi rims as I did not need them.
