ladybirder, I'm afraid you are wrong. Halties are not designed for aggressive dogs. They are designed to gently control a dogs head without jerking it and are very effective. A lot of Irish Wolfhound owners use them, simply because if one of our breed suddenly decides to yank on the lead, you stand little chance of controlling them. Most wolfies don't need them after a short while as it teaches the dog gently that where you go, his/her head goes. You need to make sure that the strap that goes around the back of the ears is not too loose, as otherwise the halti cannot do its job. You seem to be doing very well with your dog. So, I am sure you will soon have her fully under control spotit3.