I’m posting this in bugs because I think this is an important issue.
In my opinion once steer has been activated following a contour, it should be locked to that line BY DEFAULT. I can see no scenario where you would want it to change lines randomly without warning.
Yes, I know pressing the lock button will prevent this but this has to be done every time a line is followed and I think the reverse should be the case. Unlocking should be optional if that scenario is wanted. Why this would be the case I don’t know to be honest.
Twice today contour has thrown me wildly off course from a seemingly continuous line. Neither too dangerous but a week or two ago it very nearly put me and a 20 tonne tanker into a bog!