I have an Autohelm
4000 and a 3000. Seem to be very much the same other than the 4000 ties into the nav system. Sadly I have the Autohelm
"lets turn sharply for no reason" problem in the 4000. I saw in threads others with this issue and it may be a soldering fix. However as Murphy lives on my boat I will assume it has gone south.
Unless one has plotted a course with turn legs. etc., why would you not just set a heading on the 3000 and let it hold the heading?
I am sure I am missing something here but the only time I could see doing the course change on auto would be long crossings with a tack every few hours. Since I have a cat, the odds on it crossing over without "help" seem low.