Steve Kroop at Flytec<<info>>
writes:

When team flying a task, pilots will communicate their position to
each other (over the radio) relative to the route course line. This is easily
done on the 6030 with the user-field XT Error. The displayed value is the
pilot's distance off of a line connecting the two waypoints of the active leg of
the route. Right of course line is shown as a positive distance and left of
course line is show as negative. For example, a pilot may radio "I am 10k out XT
-500m" This would indicate that the pilot is 10 km from the next WP center and
500m left of the active leg of the route.

This technique was inadvertently foiled when the optimized route feature was
added. In the early firmware versions that added the optimized route, when the
Competition Route was optimized, the position of the far end of the course-line
was not fixed. The far end point was on the WP cylinder (rather than the WP
center) and would move as your approach angle changed and the instrument
calculated your new best cylinder intercept. This meant that each pilot had
their own individual XT Error, rendering the info meaningless to another pilot.
Starting with firmware 3.33c, XT Error is once again calculated relative to a
line between the WP centers of the active leg of the route.

So make sure that all your team pilots have the updated version of
the firmware.