Sometimes the oldest methods are best. I am not advocating that you stay with the halter but training in it is not that much different than training in anything else (including bitted bridles). You must still teach your horse to give her head in "this" direction when she feels pressure "here". If you have a regular nylon halter, you can hook the reins to the side d-rings and is easier to get your point across than if you have them hooked to the ring on the underside. However; if she does not tuck her nose and bend at the poll, when you apply pressure to stop her, the halter will slide farther up on her face and could create all new problems. I never saw the point of spending lots of money on something new when what you already have works just fine.......LOL but that may just be me.