I just got a Dr. Cooks Bitless Bridle (BB). In fact, I now have two. Actually three but the first one-not a Dr. Cooks-was a raging disappointment. If you go BB-don't be a cheapskate becasue not all of them are as designed as well and are therefore not as functional.
My percheron really does not do well with bits. He panics, is hard to tack and will really take off, even with a light hand. I finally figured out it is fear and pain. A bit does not make him "listen". It sends him into an out of control frenzy. he has really taught me a lesson about all horses and bits. There really is a better way.
I first came across the notion when I was using a rope halter during farrier visits. It worked fine and he behaved better. So, next, I tired an inexpensive BB. I did not like the design. It did not take advantage of pressure points. While at Equine Affaire, I purchased a Dr. Cooks. Carole and the staff at Dr. Cooks are very helpful. I have used the BB to lunge and do ground work with. Its great. Good enough that I bought a smaller one to accommodate my Haflingers. They do just fine with it. Of course Halfingers do just fine with about anything! The trick with them is to get them to go forward at all! So yeah... a BB is really a great option!!
My next trick is to use it with a friends horse that insists on head dropping and banging herself in the mouth with a bit.
I'll keep you posted!