Thanks for the tips! I have 35UN also, well actually it's the only 36UN, Prototype, I increased the tire pressure to 100psi last week, then took it for a ride to fill up fuel and Propane, The increase from 85 to 100 made a large difference in itself, In a couple of weeks we heading to a campground 240 miles from home, will see if this is all I needed, I wasn't upset with the way my coach drove before, but after reading that many inflate their tires to 100PSI I figure I would give it a try. Next year we heading from NJ to Yellowstone so I am hoping to have the coach in as best of shape as possible, I am also considering the 5 Star tuning.