ROG:
Am I correct in saying that the ferry ‘mode’ should be done just before each of the two movements
I always book off when stopped at port. As Rog says, I select ferry move when about to move, then select rest again when stationary on the deck, or whatever. Same for 2nd move if necessary. Had no issues with this. It`s a 2year old Stoneridge tacho, and it gives a countdown of available movement time from 60mins.