Concerns or Problems with Reese Dual cam

Thanks for the input so far. I have no problem with installing the system myself, and in fact would be skeptical about the dealership doing it, as I have seen some absolute messes created by their "mechanics". I have all the equipment to do the job, but as mentioned, my greatest concern is stripped or backed out screws.
Question...would it be best to drill completely through the A Frame and bolt everything up with bolts, lock washers, and nuts.
Or, would this somehow inhibit or jeopardize the system of the DC, or perhaps weaken the frame of the trailer?