Pete.... thank you!!! I had one of those "eureka" light-bulb moments in watching your video -- not from just watching but hearing you say "turn on a loose lead."
That was one of my (RIP) girls, 5 years ago, on the way to the line at a hunt test. As I told Marilyn in a PM, Sparky's field and floor manners were completely different. If there were birds or shotguns, she could not remain calm. And, my leash work then was to pull back even harder.
With a new 20-week old girl, I will apply your loose-lead tips today! She'll have her first gym floor work ina couple of months.