I had my first ride in my new Easy Trek bridle today (exactly the same as Dr Cook's but cheaper). I have to say I was a little unsure of what my horse might do because she can be an absolute nightmare sometimes. Never the less I got on and I loved it! We rode down the carpark and onto the common where I keep her, it's about 90 acres and has about 40 horses roaming it. She had about 5 minutes of wanting to trot and getting a bit joggy, I think this was because she suddenly realised she had no bit in her mouth, but then she settled right down and was really relaxed. At no point did I feel as though I had lost control and I walked, trotted and cantered her. This may not sound much but my mare can be very spooky and unpredictable when she is ridden out without another horse. I think the main thing I noticed was that if she looked at something she would shy but then go back to being relaxed. Normally she would spook and then take ages to calm down again. There is alot of scheptasism with these bridles but I have only ever read one bad review and I have tried it on a horse which is a challenge to ride, I think everyone should atleast give it a go. I have also just bought a treeless saddle but I'm gonna get Sacha used to her bridle before I ride her in that as well. I dont want to blow her mind by changing all she knows in one day.