It not only reduces the load on the transom but stops the motor from bouncing to the side.It locks it in a straight posistion.My 50 tiller would always be laying on its side while trailering bouncing around with no way to lock it straight.Most boats with a steering wheel the motor will stay in one posistion.With a tiller its harder to lock it straight.The transom saver also reduces wear on the rubber engine mount bushings by locking the motor down.For $50.00 dollars or so why wouldnt you have one.
Just my 2 cents