Inspired by a recent thread about the wonders of Haltis I decided to give then another go with my springer (we'd tried a couple of years ago but then he wriggled out of it).
To some extent it is working, in that he no longer yanks my arm off as he walks, and he has only managed to pull the whole thing off once. However, he hates it so much that he spends all the time on the lead with his head down on the floor scratching at his nose in a vain attempt to pull it off. He now has a very sore nose which is bleeding every walk (quite badly). He just doesn't seem to be getting the message.
I've tried distracting him with treats but he is too focussed on the scratching thing to take them. We've been using it for 2 weeks now, btw.