My wonderful daughter-in-law, Christina, is visiting from Ohio and volunteered (!) to help me proof Devon.  What a stupendous, progressive lesson Devon and I had!  Here is one from his signals:

Devon missed my first signal.  No big deal.  I simply let him know he had made a mistake, helped him succeed (showed him that he could perform despite the major distraction)  , then repeated the signal.  Devon came through with flying colors.

Proofing is meant to build confidence and stabilize my dog's understanding.  That's what it's all about!

THANK YOU, CHRISTINA!