A real example with my dog Rowdy who is 14 mo. The first time on two down the shore he beached early on the memory bird. I called him back into the water and handled him to the memory bird. I used nothing but attrition. Then I ran the memory bird as a single. Then repeated the double. He did very well in my opinion. See my video.
I tend to stay with attrition for a young dog learning something new. Because you don't know if he is confused or just being hard headed. I am a lot less tolerate of a more advanced dog.
One of the things I learned from Howard N. recently was to spend more time lining the dog up on the memory bird. That helped me and Rowdy a lot, I think.