Front sway bar "slop"

Back to engineering. The Hellwig end links are set inward from the Roadmaster allowing more movement of the suspension before being effective, more sway. The Roadmaster end links sit outwards as far as possible giving more anti roll affect. But most anything is better than OE. To me the larger question, being new to the RV thing, why do we have to add all this suspension stuff to make our RVs safe to drive, why wasn't this engineered in by the manufacturer. To my thinking we buy a very expensive kit that is up to us to make right and safe. As I have told my friends: RVs are not engineered, they are assembled.