hyd. pros it is easy to put up and down, con you don't know where you are at with it. turn around to look, it looks ok??, some one else pulls you sking trying to set it he knocks out you eye balls, when it goes out $300.00 for new pump, manual, you know where it is at, ski, cruise, race, put it in the notch you choose, someone else drives you just tell them witch notch, if it breaks its just a cable and that rarely happens,$100.00 on a bigger boat the diverter doesn't react so critical, but on a small boat it reacts more and sooner, so if you change a notch you know where you are at, hyd. you hit the button and you could be three notches, and all over the place. Jim