My little Romanian boy didn't like his harness, he didn't like it going over his head just like the dog catchers noose! But the purfect fit can be unclipped to go around the neck. He does pull on the lead, and I was worried about the last harness, it used to choke him just like a collar. A friend bought a Perfectfit harness and she let me try hers. He doesn't pull so much and definitely doesn't get choked by it. Also he doesn't mind it going on now, so Happy I got one. Only trouble is.. He is a harness chewer... So it doesn't go on till we are by the gate and ready to go😉