
Just a word of advice. If you are going to let ehr wear the head collar without a lead attached I would go for the gentle leade, as that one adjusts under the chin so that it doesn't leave it all loose aroudn the muzzle like a Halti, which is so easy for the dog to chew up if not attached to a lead.
I have found with the GL that this is less likely as the nose bit should be doen up under the chin behind the dogs lips.
At our trainignclass out of the two we find the webbing on the Gentle Leader softer and less pringe to mark the face, and seems to ride up less that the Halti on most dogs.
When using one please use a Halti link or use a check or half check collar to attach the lead to also just in case the headcollar comes off.
The chain will give the slack needed not to interfere with the headcollars use.
Alternatively a double ended lead can be used atttaching one end to head collar and other to her collar, or two leads (though this can be unwieldy, I prefer one lead attached to half check collar and Headcollar for safety, especialy with a dog that may get out of control.
I have a friend with an extremely fear aggressive bitch in the presence of other dogs and people when out of the house (sweet as you like at home with both humans and canines). they take her out muzzled and on a headcollar in the evenings just so she can get some excersise, I would almost say she is Agraphobic, she si such a Jekyl and Hyde. If I didn't know I woudl have said she had not beeen brought up and socialised properly, whcih is farthest from the truth, she just got worse and worse as she got older, starting after her first season. Thinking it may have been hormonal she was spayed after a couple of seasons yet it made no differenece. She actually shakes.
Ayway hubby took her out one evening and somehow when she jerked her headcollar came undone and she was running around in the road in panic, so she is always attached to her collar as well.