Has anyone ever used the Legends/eglidedoodies Sliding Tour Pack Kit? It’s the kit that allows you to slide your tour pack all the way forward so the rider can use the tour pack as his back rest or it slides all the way to the rear so you can add a rear pad for riding two up. I have been wanting one of these since I first saw them in 2010 but they were so expensive I didn’t dare. They finally have the price low enough that it is an affordable kit. Any feedback at all will greatly help me.