One of the previous posts mentioned that her choke collar seems to fit too far down on the dog's neck. My trainer said to measure the neck and buy a collar about 2 inches bigger which I did. So it hangs around the lower part of his neck. I'm getting the idea that to be most effective it needs to be around the upper part. So do you constantly move it? It doesn't stay, if you're going to have a loose lead. Should I get a smaller one that will fit up higher?
Sorry, I'm confused.

Frances