In the first case, it does not matter what tracks you use. If you have special requirements you can use whatever tracks you wish. However, many laser show producers may want to sell or lease tapes to others. Because most laser producers use ADAT, this is the common name for the track assignment standard.
Pangolin uses the following track assignments.
Track 1, X axis signal. The signal should always be recorded correctly for front projection. Track 2, Y axis signal. Track 4, Green signal. Track 5, Blue signal.