We have a 2014 Southwind 36 L and it was almost impossible to drive from day one.  Had a truck and coach specialist check it out because our complaints fell on deaf ears with the dealer and Ford.  Each said the other was responsible.  The tech said immediately after crawling under it that the  caster was off on each front tire, one was 2 degrees + on one side and 1 degree - negative on the other side.  Basically, they said the tires were fighting each other.  After the alignment and caster correction the coach handled much better.  The shop had given us the name of SafeTPlus to do some research on because they felt it would help the handling and make it safer in case of a front blow out.  About a week later we returned and had it put on, it definitely does help and the trucks don't push us around nearly as much as before.  Hope this info is helpful.