I just completed an eight-week training session with Heather Davis for my six year old Pit Bull rescue, who was VERY enthusiastic on-leash when passing other dogs, big and small. He's so much better now; more relaxed and in control. He also learned his basic commands. Off Leash K-9 Training is super professional; they know what they are doing and are eager to take on all "unwanted" behavior with confidence. Heather Davis ROCKS.