I have a Merc sea pro 25 2 stroke. Do they have specific water gauges for that motor, or is there an aftermarket version that would fit on? I'm considering adding a jackplate to my shadowcast and have no idea if there is a gauge that is compatible or how to hook it up. From what I understand it's not a good idea to run a jack plate without a pressure gauge for obcvious reasons. I would like to be able to get the motor up a few inches however I don't want to cause any damage to it. Any suggestions?