Autopilot calculations

[Lew Springer]

In my current system if the boat is on a track and there is significant compass error, current set or wind drift, the course computer adjusts the heading to provide a heading offset that enables the required COG to be achieved. This offset on my boat is usually measured in from zero to a few degrees.

If a waypoint is then encountered and the course changes very slightly, the initial heading set by the course computer is exactly equal to the new BTW. Whatever heading offset that was required is simply lost and the course computer has to go through the job of determining the offset all over again.

In my case I observe the heading offset just before the waypoint is reached. After the waypoint is reached and a new heading is set by the course computer I dial in the previous offset and get good results.

Do the new Evolution series of course computers retain part or all of the prior offset so that the operator does not have to enter the heading offset manually?