Update: As Max, my dog aggressive Akita came of age, he started displaying aggressive behavior towards my live in girlfriend. Immediately after that I took him to Dave for the ecollar training and once again Dave at Empowered K9 blew me away. I have no doubt in my mind that if it were not for Dave, I would have had no choice but to put my best friend down. Many people who haven't had dogs with serious behavior issues do not understand how life changing ecollar training can be, for both the owner and the dog. THANK YOU EMPOWERED K9!