Fifth wheel chucking

Thanks for all your opinions and experiences. I drove semis for 37 years with all types of suspensions on the tractor and trailers. An air ride suspension on the trailer gave the most overall ride improvement. The IS suspension would be the most ideal way to go, but that is way to much money to spend on a 14 year old coach (even though it is in like new condition). My wife and I are not full timers and never will be because we love coming home as much as we love traveling!
I am going to weigh the rig and find my pin weight. The truck and trailer both sit level and the ride is usually good, but I want some improvement for the poorer sections of roads. Please continue to input on this subject.