Traralgon departures on weekends (especially footy and race days) can be very unpredictable. On weekdays all trains depart from 13, but on a weekend they can depart from 8B or 8 South so V/Line can save on dead running to Kensington to turn around, but they can also be seen departing from 12 as well as the usual 13. V/Line usually play an announcement to advise of platform changes when boarding commences, but if one rocks up on platform 13 a few minutes before departure time only to find that their train isn't on the board, it's a very long run to 8 South which results in pax missing their service.
Hopefully when 15/16 comes on line this will see all Gippsland trains depart from there as well as all DMU Geelong trains. I noticed that the signage has been altered on the platforms to indicate 15A, 15B, 16A and 16B which would suggest that trains will be able to shunt "on top" of each other.