I’m going out on a limb here and saying that it can depend on the tow vehicle. My dealer threw in an Equilizer 4 point WDH hitch, spec’d at 1000,10000 as part of the deal for the trailer in my signature. That said, my max tongue weight is roughly 950ish (according to the sticker, not the scales), and while it’s still under, it is close and if I had say a F150 as opposed to a F250, I would have wanted heavier bars due to the smaller truck. My F250 handles the load just fine without the WDH with a little help form my airbags, but I’m more than happy to use it for safety sake and I do think it helps a lot with sway. Just a theory...
2015 F350 Dually, 6.7 PSD
2014 V-Lite 30WIKSS, Diamond Package W/All the goodies