Computers trimming foils is the same as computers trimming wings. Air VS water but has the same effect on the boat.

The 2 AC 45s that were on display in the cup park and the village had been modified to foils but the boards were still the class boards. But there were 2 fore/aft servo boxes right behind the front cross bar. I think these were the two O had modified for foil testing.

I don't have a problem with hydraulics but I want the controls to be manual.
As far as the tablets and GPS. No problem. They are not sailing the boat. It is just a way to supply information.