My sheltie is 9 weeks old now and we have had her in the home for 2 weeks. She is doing awesome with scialization, bonding, clicker training (sit/down/look) and crate training. She clearly is very smart and trainable. I am home full time. I am ready to start leash training. We have used a simple loop leash to get her used to the idea, when we go out to potty. She's not fond of it, but tolerates it. I purchased "gentle leaders" in a size for puppies under 5 pounds and the next size up. I have read this is an ideal collar for shelties. We are not planning to show her. This is to be used for daily walks eventually and outings. Any thoughts, exprience or advice are appreciated. Thanks in advance!