I have been using a gentle leader on my Golden Retriever, who is a severe puller without it. She does very well on the leader once she gets used to it, but for the first few minutes she tries to rub it off. I have also been told it makes her look like she has a muzzle on and I get questioned about what is wrong with her. I was considering trying the Sporn Training Halter. I have read some reviews and do have some concern about the way it fits. I'm wondering if someone had has experience with both and what their preference is.