JJ,
I use the m-y wedge on my last 2 pro-v’s because I have used Shoreland’r trailers and I did not want to use the transom saver that has to go up under the trailer frame. I have not had any problems, but it does not take the weight off the transom just the trim/tilt of the motor.
If you do purchase the wedge make sure that you do not need one on each side or if you have seastar steering you may also need to purchase the 2 clips that go on the steering of the motor to keep the motor from turning. On my Yamaha I only use on one side due to a grease zerk on the other and it does not turn my motor going down the road.
I use it because that is what my boat dealer suggested and uses on all his new boats with shoreland’r trailers.
Ryan