FWIW, it tows well with the T-Dub on the stern w/the help of a WDH.
The combination is rock solid. It ties the truck and trailer together, provides sway control, and stops proposing.
I concur with this method and am very happy with the WDH for the reasons quoted, particularly the sway control.
The shop I worked with to strengthen the frame and swap the axle recommended this route. Partially due to the OMW tongue extension the tongue weight (95#'s + extra stiffening steel on frame) can be north of 600#'s (depending on load) and induced a bit of squat which the WDH pretty much removed.
The TV is a front end heavy diesel 1 ton single axle w/a add-a-leaf and 1000# class 4 reciever. The trailer is sitting on a 5200# solid axle on 4200# leaf springs and 16 x 265E tires that provide a wide solid track.
I have run at 65mph in a 70 knt wind on the port quarter w/o any sway. When I try to swing it, it just flows in line.
Now for the sacrilege, putting the 270# Yamaha out back on a 70# MotoTote rack. It has not negatively affected the program at all. Actually, its balanced a bit more, even with 20+ gallons of water aft, the tongue weight lands around 400#'s. I've run it at 85mph and it just tracks. I've semi-panic braked (I do run the brake controller on the high side for drag) and it still just tracks.
Prior set up w/stock high lift torsion axle and OMW lift & shock on 15 x 235E's and no WDH, it was far "looser" in the trail for sure. I'd never have thought to put the scoot aft then. Granted the extra 18" in tongue length contributes positively by itself as it alone towed far better than bare bones stock.
In summary, I've been made a believer in what the professional trailer guys say about the benefits of a WDH and increasing the carry capacity all around. Bigger brakes, bearings, wheel diameter and extra steel where needed has contributed to a far more stable and comfortable towing experience.
As they say results (& comments) will vary but, I like the product and we don't mind the extra step to get in.
Oh yes, there are rear, brake and turn signals wired on the rack. I do plan to add/put a light bar above the window though too.