B&G ZEUS Touch Operator's Manual page 33

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Tidal flow correction on
When tide correction is ON, the laylines are geographic laylines, showing the track you will sail
over the ground but not necessarily the direction that you will be pointing.
In this case the target angle is achieved when the current tack layline is aligned with the
orange COG indicator. When tide correction is on you will also get a more accurate indication
of when to tack or gybe for the layline to the current waypoint. This is the point at which the
opposite tack layline is aligned with the current waypoint indicator.
Tidal flow correction off
If tide correction is OFF the laylines are relative to Heading and not COG. In this case the
target angle is achieved by aligning the boat along the current tack layline. Note, the opposite
tack layline and waypoint information is not as accurate in this mode.
Navigating with the Zeus Touch | Zeus Touch Operator Manual