I have five aussies at the moment…ranging in age from 10 years to 8 months. They are all from the same breeder. None of my dogs are high drive, they are all moderate. I grew up with border collies, so I told the breeder at the outset I didn’t want a high drive Aussie or highly reactive Aussie. A good breeder will know her lines and be able to advise you on what would be the best choice in temperament for you.
I do confirmation and rally, but really my dogs are farm dogs, working with us on the farm. As soon as the dogs come into the house they know it is chill out time and they head to their respective spots including the couch They go on a walkabout with my SO every morning and on the weekends we hike to the pond and then into the preserve which borders the farm.
As with any breed the key is finding the right breeder. And by that I mean someone who isn’t just selling a puppy. A good breeder in my opinion wants to match the puppy with the person…not based on color or whether the dog has blue eyes