I tried Lucy in a hackamore today for the first time, and here are the results:
So, YEAH, not bad at all!!!
She got a little excited, Lucy style, when we picked up the canter, but I didn't feel out of control and I definitely had brakes. This hackamore was a Western style one that I was able to borrow for the day from a friend, and tomorrow I will be picking up an English hackamore.