I use a similar approach to Alicia. The dogs start a long way off and come toward me while being tracked. Anything you can do to repeat the same line multiple times is helpful. I use the 70-200 to have a longer approach and easier angles.
The toughest subject is a small subject like a puppy. They move quickly but are small. With puppies, a burst of shots is important since you don't have much time and movements are quick and somewhat unpredictable.