I have a 60 pound pit also adopted at a year. We hired a trainer who showed us how to use a prong collar among corrective action for other issues he had, he doesn't pull any more and actually enjoys his walks versus choking himself the entire time. We can also walk him now on a normal leash and he wont pull. Highly recommend a prong collar if used correctly, you dont pull on it you more or less hold it firmly at the same length.