Just a quick comment: Always understand that you are pushing a super big breadbox thru the air. An airplane can get airborne with far less wing area than the side of our motorhomes and we need to expect the challange of driving this box in a wind. Yes, mods to the suspension will help, proper tire pressures will help but it is not a Porsche. Just stick your hand out flat from your car window while driving 40mph and then tilt it up or down. Now multiply that reaction from the wind by thousands of "hands" on the side of your rig. It's gonna move! Think about wind on the corner of your coach and the various reactions your rig will have. It's just not easy to drive in a significant wind.
I actually know folks that stopped the RVing lifestyle because of the "handling" of the RV. What a shame.
My solution: If I'm being pushed around too much I either slow way down or get off the road.
I'm sorry if I sound like I'm preaching but we just need to look at the physics of the whole thing.
2011 Georgetown 378TS in FireMist
2013 Jeep Wrangler Toad
Kirby the Old Dog, passed but still in our hearts
Max E. Dog, the new pup
Eureka the Old Cat, still hangin' on