I'm kind of curious about trampolines, too. Why would anybody care about that? They can't make your boat go faster, can they? I suppose if somebody doesn't mind being wet and uncomfortable all the time and has an open net tramp that has less windage when the boat is flying a hull, and, therefore, the boat is less likely to capsize, thereby giving you an advantage in windy conditions, that might be up for discussion. Haven't seen that yet.