I've read lots of good recommendations about head halters for dogs but is it really worth $20? And does it REALLY help with leash training? My 8 month old, Dixie does pretty well but 50% of the time she's dragging me down the street. She had been doing REALLY well until she turned 6 months. Since then, I've had a lot of trouble controlling her on our walks. I've tried treats, and stopping until she stops pulling.