Join Date: Aug 2009
Location: New South Wales, Australia
I used the Grackle with my old TB and it really made all the difference. He'd cross his jaw/open his mouth and really lean on the bit.
Looking at the Grackle, if they try to open their jaw it puts pressure on both their lower jaw and more upper face, so I think it really encourages them to keep it closed. I also have never been quite happy with the fit of flash nosebands. They seem to be too tight in both areas, and can slide down too far.
95% of running martingales I have seen have been adjusted wrong so that they have virtually no effect. I like the fact that, because they're attached to the reins, the rider can control when they're in effect more. In a emergency of sorts, like when a horse stumbles, loosening the contact will stop the action of the martingale. You don't have this with a standing martingale.