Have been trying to walk barney to heal which seems like for ever, but to no avail. He pulls like mad, have tried the stop start change direction and telling him goodboy when he is walking correctley but doesn't last. I am now not enjoying the walks as at the end of it my hand just hurts. What do you think of a gentle leader. Don't really like the look of them but was wondering if to try one. My dog Is a miniture australian labradoodle and he is 7 months old.