I don’t like e-collars unless it’s absolutely necessary — and they are not a training tool in my opinion. They are simply a tool of management and control.
When I ask trainers when they stop using the tool? Never is generally the answer. Why? Because they never fully trust their dogs off leash. Once you start using an e-collar for training, it’s likely going to be used for the life of the dog – why? Because it’s not a training tool, there is nothing being accomplished when you have it ‘just in case’.