LOL I find all your responses funny. I should know better then to post MY OPINIONS on a public forum! Shame on me!
Actually, I DO have ways to get a horse to pull his nose in and it DOESN'T involve a piece of equipment.
I work the horse on hills to make sure he understands how to use his body and that he "pushes" himself along rather then "pulling" himself along.
Then I put the horse in a snaffle (double jointed) and comb the reins to ask them to stretch and reach for the bit at the walk and trot.
Once that is soft and consistant, I'll then do serpintines and bending exercises to get the horse to bring his head up to a happy medium between way down and up too high. If you get the ingrediants right, it all happens.......dare I say it........very naturally