Straight from B&W

The Valley parts of the bed are also resting against the frame of the Companion Turnover Ball Hitch under the bed. The plastic strips transfer the load of the Companion 5th Wheel Hitch to the Turnover Ball Frame below, so there is more than just the top hats transferring load to the frame. I have no problems with mine, and love that I've got a clean bed when not using the 5th Wheel hitch. Yes if I were to get a new truck I'd get one with the factory pucks, but they've only been available for a few years now so those of us that didn't have that option use what works the best for us.

Rich