My coach wandered badly. I weighed it and it was 200 lbs overloaded on rear axle (no tag) and the previous owner had always run 90 lbs of air in the rear and 100 in the front. I raised the pressures to 105 in the rear and it made a complete different coach out of it on the highway. So far with air ride I can't tell the difference in ride quality but DW has ridden in it yet. The driving is much more stable though.
2005 Inspire 330 Davinci, #51334. C9
2012 Nu Wa 363RSBDA
2016 Ford F-350 Dually 6.7