I had both Trail Air Equalizer center links and bolt on shock absorbers. The reason to do this is not for "ride and handling"...the purpose of these mods is not to make the TT tow better.
What it DOES do is give the TT and its contents a better ride. Living here in NY and having to tow through NYC we would get to PA and find cabinet doors open and stuff everywhere. The bad roads were literally beating the TT to death. Aside from damage to contents, it stresses joints, cabinetry, etc.
Our TT came from the factory with the Trail Air equalizer, but installing the shocks made a huge difference. Everything in the TT had a much better ride, cabinets stayed closed and stuff stayed put.
