I would recomend trying before you buy. While many people believe that just because it doesnt have a bit its better for your horse, its really not true. Equiptment is only cruel by that hands that use it. Some horses absolutely loathe the nose pressure that bitless bridles use, while some horses prefer it over bit. Its all about the induvidual horse. I would probably play around with around with other bits, maybe he didn't like the mouthpiece, or the type of joint it had, maybe it was too thick or thin? Did the length of the bit fit him right? You could try a hackamore? They have types that apply nose, poll, or curb pressure or combinations of those. I know a hgh level Dressage horse who goes better in a curb pressure hackamore than a bit. Maybe your horse doesnt like bits at all or it just wasnt right for him. Just keep trying your options and you'll find something right for him.