I ride in one quite abit. It needs to rest about 1 1/2" to 2" above the top of the nostils. Charlotte C set mine up and adjusted it to the right spot to fit my horse and I haven't touched it since. I also run a german martingale with mine to help with break over in the pole area. Sometime my mare wants to root her nose up and this just helps keep it in place. Those Stivers chain hacks are hard to find(the originals) that is. Hope this helps.