Its is great that you dont have to keep using a tie down!
Horses can run as free with one on, so if she is doing well without it, then keep up the good work!
The brain chain, or tiedown that work from the poll is to lower the horses actual head...not nose. It helps him understand where he needs to keep the level of his entire head. The noseband tiedown keeps his "nose" lower..
My main goal when I get a horse in that has head tossing, pointing, or any other sort of issue like that is to get the horse to understand that the only release they will get from the bit is with a low set head. Once the horse understands my point, then a martingale will help re-inforce it on the barrel pattern!
Hope this made some sense!
good luck!
ALISA CURRY HORSE TRAINING SVC
www.oldriverfarms.com