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Opinions are like noses, every has or has had one. As being an engineer for the past 32 years, I take every opportunity to find the history of a product and use it in order to decide whether or not to make any changes. Lack of knowledge on any subject only leads to sometimes costly mistakes. So, if you like a gasser, and want to add Sumo Springs, and hope that it is not snake oil by a lot of hype from advertisement then go that route. If you have already have taken the plunge and want to express an honest opinion on the subject, then tell others that is what you are using, and are well pleased with the results. You might even want to become the over 101 years of hands on instructors. Most everyone on this forum have owned gasser motorhomes in the past and wrestled with trying to make them climb a hill better, or make the ride smoother, make it easier to handle. So please leave opinions, but not criticism of those who are working hard to help others. In the course of my career, I have evaluated many new items and find that 75% are useless, or not as good as what is already working. Many happy trails, Kay

I also have a Safe-T-Plus on my coach along with Sumo Springs and a rear track bar. This 2015 Tiffin Allegro Open Road gasoline 36LA drives better than my old 2008 H/R Ambassador with eight air bags. Go figure.

I have a 2003 Southwind 36 on a Workhorse chassis. I am trying to decide on Sumo Springs or rear track bar. I already have a steering stabilizer (the one with the centering springs) I bought and had installed at Perry GA a few years ago. I have Bilstein shocks around. I want a stable ride in wind and truck traffic as well as the smoothest ride I can get. I am tired of driving up I71 and feeling like I am leaving RV pieces on the road from all of the bumps.

I did the CHF and rear track bar and still had problems, so I did all the homework on the SUMO's and decided to install the maxims front and rear not only did it straighten out the wind problem the ride is now amazingly much better. I wish I had installed these first.

Here is a link to an article that is still very relevant. http://www.rvdoctor.com/2004/11/improving-motorhome-ride-steering-and.html I think there are three issues: safety, stability, and ride ability. Whenever you make a change it affects other issues. Taking your MH to a recognized suspension shop is probably a good idea to help sort this out. The Sumo, Firestone airbags, and Kelderman's softer spring+air bag for the front should all be considered in addition to: weight distribution, tire inflation, testing the shock springs, replacing the shocks with Bilsteins or Konis, the cheap handling fix, sway bars, checking the alignment, a true track bar, a steering dampner, rear air bags, and rear stabilizer bar. However, I don't think you will find it easy to sort it all out in any forum unless you are lucky and just happen to hit the right combo of things that achieve your goal if you are doing this on your own.This is such a gray and moving target that it is hard to put a finger on how to achieve the best end results are and just how good the end results are. Sort of a function of how you use your unit, what unit you have (as mentioned) and your own personal expectations and needs. Hopefully this discussion won't receive diesel unit input because it won't be relevant to assisting you with the solutions you are looking for. My wife gets car sick and that is never eliminated from our trips. It appears to me that the Class A gas industry leaves it up to the consumer, for the most part, to sort it out for themselves.

We had a 35' WB Vista on the F53 chassis, while the ride and power were OK , I found the chassis lacking in stability in winds, passing trucks etc. what we ended up doing was invest in a rear trac bar and a tru control steering stabilizer by Blue Ox. I also did what some call the cheap handling fix which is the moving of mounting bolts on the sway bars. You might find this in this forum under chassis but if you venture over to Irv2 ford chassis section there is a pretty good discussion on this. After doing these upgrades, our Vista handled as well as a MH in that class and weight could. Many that invested in the Sumo system are happy with it.