These are my Base Times for the above race.
1 30.694 0.182
2 30.758 0.261
3 30.491 0.241
4 30.740 0.247
5 30.971 0.439
6 30.456 0.318
7 30.624 0.335
8 30.332 0.322
Bendigo 500 your adding about 2.126 to the time to adjust to the Meadows, which does give the #6 a slightly better time then the #8. PPl would switch off the #6 when it has missed the start 71% of its races.
The trick with records is to look at the box the dog won from and if its cutting into the corner from wide, this increases the radius and allows the dog a faster than normal time whereas if it had entered the turn stuck on the rails.
Most track records are not from the #1 box but wide off the track or mid track.