I've got 3 different WD systems with 5 different hitch heads. One is an old Reese 7k system. Works great up to its weight limit. Then I have a 10k (maybe 12 can't remember) Reese system that I bought when I bought the new camper. It works great once I got it adjusted correctly when the dealership didn't have it quite right and I broke the hitch head, but Reese stood behind it anyway and sent me a new hitch head, after I had already bought one, so now I have a spare. Then I needed a WD system for my utility trailer. I ended up ordering a Curt from Amazon. I didn't need much "bar" on the trailer, so I always kept the hitch head up straight. I then ordered another hitch head w/ a longer drop to use with the Suburban. Never had any issues with it until this past summer when Mom bought another camper that was just a bit too heavy for my old 7k system. But since it was closer to the same hitch height as my utility trailer I used the Curt, but now I needed more bar. I adjusted the head back to get it, but unlike the Reese, it is a smooth connection. The Reese has ridges to keep it from moving. I can feel the hitch head sliding back and forth on the shank. It has a short "block" (for lack of a better term) to supposedly stop this, but it isn't long enough for where I want the hitch head set. So if you would have asked me prior this summer, I would have given 2 thumbs up on the Curt, now, not so much.
BTW, it is the same hitch that is pictured in the link.