We just got done installing the Kurt specific to the smart hitch system on our vehicle. Unlike the other Kurt products with which we are familiar, this one came with a solid bent bar that arcs upward to where the ball is mounted. (It also is about an inch too low to trail the trailer level.
On our other mount, we installed the internal nut through which the hitch pin engages and draws the whole thing together. Unfortunately, this version will not work with the solid bar, and my past experiences with the "wedge" design leads me to believe that it is not the solution.
I'm having a hollow hitch constructed which will solve this (as well as the drawbar height issue) - one more damn'd thing on the To Do list.