Hello, I just wanted to say that yes , I use a Dr. Cookes bitless and am extremely satisfied with it, and more importantly so are my horses. I recently bought a big , beautiful eight year old warm blood, I recently took her into a dressage show and rode her with a bit for a week before hand just to make sure she could still respond successfully, of course she did , but I was so glad to get her back into the Dr. Cookes, she performs so much better in it. I am hoping that next year they will be allowed in the dressage arena, it's about time . I also know people who ride Western Pleasure that are thrilled with it. They do not work in the same principle as side pulls, no pressure to the face, they are kinder and so much more fair to your horse, try it , I can guarentee you will never go back to a bit