Can you choose what kind of hitch you get on trailer? I had a B&W gooseneck ball hitch installed fr the horse camper when I bought my truck (2006). When we later added a 5th wheel camper, I added the B&W conversion which bolts down to a square tube that replaces the gooseneck ball. It has worked well, no clunking.
Between the two type of hitches, I prefer the gooseneck since it takes up very little bed space and is easy to remove. The fifth wheel hitch blocks a lot of the bed and is very heavy to remove.
I have always wondered why no safety chains on as 5th wheel camper. Semi trucks have them and the mechanism doesn't seem to be impossible to fail.
Ken