I saw a video on another forum that a guy mounted a camera focused on his motor and transom while he was towing down the road. He had a motor holder and the video showed a lot of movement and flexing. It convinced him to do away with the motor holder and use the transom saver. It convinced me too.
I went to the motor mount style and believe that it has caused additional wear to the bushings on my 225. Saw a lot more movement when hauling. Went back to a transom saver