Developing Memory once your Retriever is steady

When you are training by yourself Bill likes to introduce the idea of triples, maybe at 5, 6, or 7 months old. Only for the reason for the dog to learn:
THERE'S ALWAYS ONE MORE (nothing technical). Therefore you are starting to develop memory.
AKC Retriever Field Trial Accomplishments of Bill Hillmann: https://youtu.be/OB95Dg2sSJY
Videos: http://hawkeyemedia.net​
Blog: http://billhillmann.net​