On my first trip, the steering was horrible on my 2 month old coach. Steering went from 10 to 2 o'clock without moving the rig. 2nd trip 4 months after first, I put the tires to the PSI's on the door frame and it made a world of difference. now it was maybe 11:30 to 12:30. the front tires had ~50 psi in them and the rear dulies had ~60 = both front and back were ~20 psi low. honestly looking back, I can't believe i put just shy of 1000 miles on underinflated tires.
TL;DR... sometimes the small things matter a lot more than the expensive things.
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