I began using plastic shoes on my draft horse that kicked himself in the side of the foot as his confirmation was base narrow and because of the weight of a steel shoe. In looking for alternatives to protect him from brushing, I found HOOF-it horseshoes in draft size and tried them.
I noticed so much growth in his feet and that he was so much more comfortable , moving more fluid, and yes he stopped brushing and injuring his hind leg. I began to try them on my cross country and event horses and haven't gone back to steel since. The plastic shoes contribute to increased hoof growth. This gives the farrier more hoof to work with if the horse needs correction in his hoof. The shoe flexes, this creates more circulation in the foot and a healthier foot. The shoe flexes and this protects pasture mates form injury of serious kicks from steel shoes, but protects the using horse from hard surface or stone bruises.
I've had one thoroughbred with under-run heels for ten years. With plastic shoes and my certified farrier's expertise in trimming and setting the shoe, he has grown upright heel for the first tine in 10 years! I love plastic horse shoes. People ask if there wear as well as steel. I actually had them re set three times on my draft horse. He weighs about 2500lbs. We were doing trail rides and arena work with him. I think they wear better than steel.
Thank you Hoof-It!