Hi Maril, I could not wait a few weeks to give you an update! That innocuous little collar is indeed amazing! We went on our usual early morning Sunday walk over to the field and she walked like little lady for most of the time and even then just got 6 inches or so ahead of me. No pulling, no choking! I changed my gait and turned a few times both going and returning and she was right with me. Very few corrections were needed. When we got back to my driveway I let her on a long relaxed leash and she never once tried to go in front of me - MAGIC! In the house she has been calm. I throw in a lot of petting sessions when she is not asking for them. She really "gets" that she needs to wait for me to go through the door 1st. I will practice the door charging with visitors today when my neighbor "comes over to visit". I will work with her recall tomorrow. I am so impressed at the great effects of what really, after all, are small changes. Thank you so much for your time and I will keep you informed!