I think you be best avoid the greyhound meetings and races that clash with your gallop events.
You wager 10 times more on Gallops so why bother with these meetings until you improve your ability and experience and confidence.

Your animals all have roughly the same chance only because you haven't yet achieved what ability is needed to seperate them.
That will come as you become more familiar with things like characteristics of fast and slow beginners, and preferred boxes.

Sorry I can't help with any comment on your selections because I don't do anything bar Victoria, plus only selected events at the Meetings I do.

Here are My Events for today.
Traralgon 6,7 and 9
Geelong 6,7 and 8

Won't have anything to post regardig Geelong until much later today.

Good Luck as you say Lomaca, but I hope it is more your judgement than Luck that determines your fortune today.