Has anyone ever built one? 20 or so years ago on the Ouachita river I fished with my uncle and a friend of his that had a house boat there with one of these home made contraptions attached to it. It was basically shaped like a wedge at the correct angle to where you could easily slide your flat bottom boat up on with just a little twist of the throttle. It also had some kinda cloth/fabric on it that the hull would slide on pretty easy. It was easy to shove the boat back off it also.. Not sure what was floating it underneath. I would like to build one of these things for my place on the lake. Any ideas ? The fabric? The correct angle? Anyone got any pics? I have looked at alot of google pics but all I see are the store bought ones..