My yorkie went through a ten week obedience program with a chain collar, and he does not have trachea damage--but he did learn to mind.
Trachea damage is much more likely to happen when the collars aren't used correctly.
The point of snapping the collar and releasing is that it engages a nerve and gets the dog's attention. A harness won't accomplish this.
I've also seen the other type of collar used with great success on large breeds. I wish people would make judgements based on information rather than what something looks like.
And remember, many of the instructors in obedience classes have had years upon years of experience--they love dogs just as much as we do. |