Healsville is a straight track too Noel and 340m is a long way to go!!
You definately need to take a catcher or give one of the kids running around $5 if its after the races! By the time you walk back up there has already been another 2-3 trials so its probably ideal to have your own catcher who can take the dog straight over the wash down area instead of it going off its head listening to the lure another couple of times waiting for you.
Its a great little track and always a good day out!!