It isn't just about numbers though is it, it's about more than that. A polished performance is what I like to see, thats why I spend many hours training. When I was younger, with much less experience, all I wanted was a dog to 'kill'. Today things are more refined, hunting for the partnership of dog and man.A dog 'doing it's own thing' is not a partnership, in my opinion anyway.
If there's alot of rabbits in a field a good dog making a retrieve straight back to hand shouldn't disturb any, in fact, a dog can be guided back to hand on a wavering route to avoid spooking a rabbit that is squat in