Regarding the halter I hesitated to buy my dog is impossible to keep on a leash and stubborn as a mule ..
I vien to test for first and I am blown away, very clearly bothers her, her makes me sick at heart can because he spent the walk to try to remove it with her legs he stopped, but then .. Not once did i took off my arm !! The leash was hardly stretched across the promenade and the can of times he tried to leave it this is taken away.
I'll continue to use it and I would say if its changed or not with the habit but for now I'm in heaven =). And proud to walk my companion Fidel without people feel sorry for me ;-)