This is a good question to ask members on the NuWa Owners Forum www.nuwaowners.org. Do a search first, as there is quite a bit of information on this topic already posted by forum members.
Right now there is a lot of activity by suppliers of suspension systems, pin box and hitch technology to improve ride. All of these systems offer benefits, however our experience indicates some provide more value than others.
DA and CE models are standard with the TrailAir Equa-Flex rubberized suspension system. The TrailAir Center Point air bag system is offered as an option.
The LS models are standard with mechanical equalizers, but can optionally be equipped with the Equa-Flex or Center Point suspension systems if desired. Consider that NuWa has built literally thousands of 5th wheels with
leaf springs, shock absorbers, and mechanical equalizers, and customers
have found ride and performance to be quite acceptable. You will be
well served by the standard suspension system, and if you are willing
to spend the extra money, the upgrade optional suspension systems will
both further enhance trailer ride.
More information on the Equa-Flex and Center Point systems is available at the TrailAir website.
As much as suspension upgrade, our experience has shown the Demco Hitch Pin Box technology used on most NuWa products (standard on DA and CE) will greatly enhance the relationship between the truck and the trailer. As the truck and trailer move independently of each other they often rock or "tug" in opposite directions causing discomfort to passengers. The Demco hitch has a movable equalizing design that greatly reduces this "telegraphing". Lower in price than other products, the Demco delivers on it's marketing promise, and when combined with the standard suspension system will deliver a very acceptable ride. Adding one of the suspension options is not necessary, but will further enhance the trailer ride. The suspension system(s) will not "dampen" the telegraphing to the truck mentioned above, which is why NuWa feels strongly about the Demco pin box.
The Demco Glide Ride is standard on HitchHiker Discover America and Champagne models, and available as an option on HitchHiker LS models. Be sure to watch the Glide Ride video in our Video Section of the website (under Miscellaneous).
This question is also available for viewing online at http://www.nuwa.com/faqs/questions/22/