Harvard's "Theory" {see the post above} makes a great deal of sense. The nonsense that every Ford C handles badly and needs thousands of after market garbage is beyond absurd. The problems, both real and imagined commence when buyers do not do a thorough test drive, thorough as in at least hour on varying road conditions to include a busy interstate.
If you were buying a nice SUV {BMW, MB, Range Rover} spending well over $100,000 would you accept the salesman explanation that it would need a full alignment and several thousand dollars of additional after market add ons to make it ride and handle decently??? :S
I didn't think so, so why do buyers of a motorhomes do this all of the time? :h
If any C does not ride and handle well right off of the showroom floor it will not get one bit better on its own but... more often than not all it needs is proper tire pressures based upon the load they carry {remember that number changes often} and perhaps a proper alignment or at least some increase in camber.
Nexus has {had?} and alignment station at their factory and it was the very last stop in the production line. Unless the original owners of our 2012 E-350 Phantom had it realigned in the 18 months and 6K miles they owned it, and I sincerely doubt it, Nexus got it right. For nearly 7 years {and 61,000 miles I have maintained my tire pressures religiously adjusting for almost every trip to reflect what load I was running. My tires have all worn evenly and the ride and handling have been beyond excellent.
At 33K miles I replaced the original shocks with a set of Heavy Duty Bilstein's and have added nothing else and not surprisingly they made for a HUGE improvement. When I started hauling motorcycles in various trailers ending up with my current 6 X 10' {8+' tall} cargo I added Airlift 5K# airbags to the coach to deal with the increased tongue weight. Adding 50psi keeps the trailer and coach dead level at the recommended 16" ball height. They recommend keeping 15 - 20 psi in the bags even when not towing and I found much to my amazement that the excellent handling and ride I had enjoyed for 5 years actually got noticeably better when running light {not towing}.
Currently we are sitting in the Yellowstone Grizzily RV Park in West Yellowstone. Yesterday we left the bike and trailer as it was in the mid 30's and drove the coach 180 miles exploring the park for 6.5 hours and the experience was awesome. No problem parking anywhere and as always the ride and handling was excellent. Hopefully it will warm up enough this morning to ride the bike but if not the coach will be just fine.
As always... Opinions and YMMV.
:C