Here is the root cause of chucking for those who are in tune with physics. https://en.wikipedia.org/wiki/Damping_ratio
The trick is to create a criticall damped senerio between your truck and trailer. The best way is an TrailAir Triglide set up. The MorRyde is a second alternative. Minimized spring bounce on trailer and truck with improved shocks provide minimal critical dampening between the truck and trailer and is not as effective.