This is a repeat from what I posted before but we've had 6 fifth wheels thru the years, way too many trucks of all kinds and several brands of conventional hitches. The Goose Box on our Pinnacle combined with my long bed, single rear wheel F350 gives us the smoothest ride we have ever had with any combo. After a year and a half of putting about 8K miles on the Pinnacle we still talk about how much better the ride is when compared to our previous rigs. Taking a 5 pound ball out to get my bed back is really nice, and quick.
We had a Trailer Saver BD3 with our previous fifth wheel and truck, an Excel and an F350 dually. It rode fairly well but wasn't as good as what we have now.
2020 F350 Platinum, srw, lbcc, 4X4, 6.7 diesel, 12,400 GVWR
2020 Pinnacle 32RLTS