You will always have trouble finding the "perfect" bit if you are looking for a substitute for an educated set of hands on the reins. A simple snaffle or a french link if you must will work fine for nearly every horse if it is used properly. Your horse can adapt and learn to take any bit if you are using good horsemanship.
There's nothing like the Rockies in the springtime... Nothing like the freedom in the air... And there ain't nothing better than draggin calves to the fire and there's nothing like the smell of burning hair. -Brenn Hill