Since you're talking CHF (Cheap Handling Fix) you're talking the F53 chassis. There is a sub-forum for the chassis that you might want to visit.
We've owned our Winnebago F53 chassis (2010) for a bit over 3.5 years now and put about 30K miles on it.
We did the CHF first along with swapping out the rubber anti-swaybar bushings to poly material. The RV had a spring type of system on the front steer tires in case there was a blow-out. I don't remember the name but it's since been replaced...
We added a rear track bar. This will stop the tail-wag a bit when trucks/other rv's pass you. That stopped a lot of sawing at the steering wheel.
We then added Sumo Springs to help the ride. This was probably a fix we could have delayed until after some of the other changes. It does help, but didn't make the difference I was looking for.
We drove this way for about 10K miles.
The final work that seemed to make a big difference was a front end alignment, Front steering stabilizer (the shock type) and what seems to have made one of the best handling fixes was to swap out the stock Bilsteins (and a front pair we'd replaced with new Bilsteins) to Koni FSD shocks. These shocks transformed the way the RV rides. I wasn't a Koni fan from installing these same shocks on a car prior, but on the RV they made a noticable difference!
Thom and Diane Boles
2010 Winnebago Vista 32K **2013 Mini Cooper S Roadster ** 2010 Triumph Tiger 1050 at home...