Thanks again for your opinions. Will let you know how we get on after our first outing on quiet roads with the halti tonight. I think we tend to forget she's still a pup and has a lot to learn. Things tend to click with her overnight. One day she doesn't know what you want her to do, then the next day it suddenly clicks in her brain. It was the same for getting her to sit and give a paw. One day no chance, next day it suddenly clicked and she hasn't looked back.