Hey Sniperduce,
Congrats. I would probably feel better if they had done the same way of mounting our chock---secured from the underside. They assured me the Bike Pro was very secure sooooooooooo.......... We've hauled the 5er with bike about 300 miles and I am more confident about everything in the back staying in place. I even had some hats in the open storage cabinets and some newspapers under the desk on the floor and everything stayed in place. When I figure out how to post pictures, I will post the ones of how I set mine up.
Have a great day,
Darrell