Anyone ever use one of these yet? They look intriguing to me as we have to use regular fenders to bump the dock where we are at. We are just concerned about durability and whether these things would flip up or not if big waves came by and maybe let the boat get underneath it. But it would solve some docking problems if it was truly legit and would hold up. Would probably want to buy a 26 foot one for a Q25 boat.