B&G Deckman - Manual (Page 64)

Special chart views
3.37
Think carefully about what you are trying to see from your projection,
and choose the points and grid options accordingly, since it is possible to
get some very useful information from the resulting images. For
example, on a long race but with the fleet in a close area you may wish
to see who is ahead/behind with respect to the finish. For this you would
have the grid based on the current waypoint (assuming this is the finish)
but then have close parallel spacing, and pick two points at either end of
the fleet.
Figure 3.15
Figure 3.16