I have been using the 740 for input to my autopilot since last fall, obviously on an earlier revision software. The autopilot has always tracked the magenta line within .01 nm xte, and has turned precisely at each waypoint turn. I have a Trio Avionics ProPilot installed, as a prototype installation on a PA28 as part of an STC submittal for FAA approval. From what I am reading, it appears that the turns to a new waypoint will be a more gradual turn. Right now I believe that my AP is turning at a standard 2 minute turn.