I know I'll get pushback from Roadmaster chassis owners, but the number of air bags has little or nothing to do with ride quality or softness. Basically every coach has enough square inches of air bag surface to support its weight on the axles. It makes no difference whether that surface area is divided among 4 vs 8 air bags cause the total air lift has to come out the same. Tag axle coaches have an additional axle so have at least two more air bags than non-tag coaches, but it's still just a share of the total load. Some suspension designs mount the air bags further outboard, which can help reduce lean in turns, but otherwise has no effect on comfort.
The larger Roadmaster chassis (as in that Beaver) use a suspension design that requires 4 air bags per steer or drive axle but only 2 on the tag. That means it has 10 air bags total. There may be some advantages to that design, but ride softness isn't one of them. It's no better or worse in that regard than the 6 airbag designs used on Freightliner and Spartan chassis. The 8 and 10 air bag Roadmaster chassis do not have IFS - the suspension design makes that impossible.
Country Coach uses their proprietary Dynomax chassis. Read a glowing description of it at the link below. Caution - it's from a Dynomax fan!
http://sherry-c-fanning.blogspot.com...lse-false.html
I think you will find that both of those coaches ride as well as any vehicle that size can do. However, I think a similar class of coach built on a high end Spartan or Freightliner chassis would do as well, e.g. under an American Coach Eagle or Tradition, Newmar Essex, etc.
A chassis with Independent Front Suspension (IFS) has some advantages on roads with potholes. IFS allows one wheel to move up and down without forcing the wheel on the other side of the axle to move with it. That can be smoother under more extreme conditions. On a decent paved highway, you probably won't notice any difference.
Linear Mode
