Awww Shucks...
People who are Chassis Tuners (for high performance/racing automotive applications) ...or who have read some of their articles... Will tell you that it's possible to add too much "roll stiffness" and that the front and rear have to be balanced, etc. etc. My belief it that RV'n is not LeMans, or Indy, or Daytona, and that any Class C RV (especially those pesky Fords) will benefit from upgraded sway bars.
As Front Tire Pressure goes, that 75-PSI for 2008 and later E-Series holds only if the Axle is actually loaded to its 5000-pound capacity. Our front axles rarely are, so using that pressure only degrades steering stability on the road. The cure is easy. Takes only weighing and use of a load/pressure chart.