We've been going to a giant field at the high school across the road from our development to do marks with Brooks. I've been having issues with him going to the person who threw the bumper, as you can see in the video he still looks, but is coming back on the whistle. This was the 6th retrieve we did. We did marks ranging from 60 yards to 115 yards, and he did well with all of them.
Brooks marked retrieve - YouTube
