We had a Sabre that we ended up adding a Trail-Air pinbox to. I honestly didn't feel a lick of difference before and after it. We then later added shocks to the camper and again, didn't feel a lick of difference.
Fast forward 6 years and a camper change, through a variety of events, we sprung for a Trailer Saver TS3 hitch. It's a world of difference!
It's just not cheap. I have a bit over $3,000 into this hitch. Worth it for a wife who has back issues.
I'll also say, I had the B&W Companion hitch, the Andersen Ultimate pyramid thing, and the Trailer Saver in the same truck and with the same trailer. The ride was passable with the B&W Companion but absolutely sucked with the Andersen (literally had my wife in tears on back to back travel days). The Trailer Saver was the king of the best ride.
2018 Ram 3500 DRW/crew cab/long bed/4x4/4.10 gears pulling a 2017 Spartan 1245 by Prime Time
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| Was a Fulltime Family for 5 years, now we're settlin' down for a spell