Finished the Steadyfast install. It's pretty straight forward, but I did question how far the side brace needs to be. That was until I actually got under there, then it became clear. There was really only one place realistically where it could go. On the BHLT there's 2 different size I beams. The one in the front is 2 3/8", while the one in the rear is 2". That required to use both install methods. Once the holes were drilled, installing the self tapping screws was a piece of cake with a 3/8" air impact gun.
I tightened everything down, and the wiggle test shows a big improvement. I really can't test in the driveway, but I'm really looking forward to a steady camper.