The locking bolt set is a great idea. However it is difficult to get the bit to seat and stay seated in the bolt. I'm using the Riversmith ratchet and have another as well. There's just not much room to work in there. I'm considering either going back to the standard 4mm hex bit that I didn't get with the ratchet, or spending another $250 to get the quick release mounts, which means I'll probably have to invert the River Quiver so I can open the rear hatch on my SUV. Frustrating!! BTW I love the River Quiver itself.