OP here. We finally purchased a new 35 ft. (hitch to bumper length) bumper-pull TT last week. Realworld tongue weight on this trailer empty, is 1200 lbs. (empty gross weight is 8,400 lbs.). Towed it home, cross-country (with our '16 Ram 3500 SRW Cummins) from an out-of-state dealer. Didn't use a weight distribution hitch (WDH) or any anti-sway. Just hitched up using an adjustable Weigh Safe ball mount.
Absolutely no sway or handling issues of any kind---even with 20-30 mph sidewinds in NM. Even moving the steering wheel back and forth (with no traffic in sight, of course) couldn't induce even the slightest amount of sway. When semi's did pass a bit too close on occasion, it did require some steering correction to keep things straight, but certainly nothing concerning. If super-stable towing was a priority I would have purchased another 5th wheel.
As for my choice not to use weight distribution, my choice is based on my specific truck and TT (see previous posts for details). Don't want to start another general WDH debate. Agree, there are situations (especially with 1/2-ton trucks) where use of a WDH is all but mandatory.
