Non 5'er----yet

Pullrite sells a very similar thing now. It looks pretty nice. Installs on the rails and has a funnel type ball mount that can stand a little bit of misalignment. The weight of it is good at 52 lbs, but I'd have to add a rail kit to my factory prep bed. That doubles the weight. The new lightweight Pullrite looks very stout and I like the pinbox adapter better than the Anderson style. The pullrite appears to keep the pinbox mount area approximately the same as standard hitch would have it. The Anderson looks like it moves the trailer back a bit which may not be an advantage at all. I can't find a price, but I wager it's not cheap. With the Anderson setup all I'd need it the gooseneck ball for my factory prep that runs $150 or so depending on what you get. The Reese ball looks pretty nice.
BTW, the majority of 5'ers we have looked at have the tapered front caps for a better turn radius. I recently watched a guy with a pickup very similar to mine maneuvering a Keystone Cougar into a spot pretty slick without a slider.