And, if you wanted to go with regular shoes, you'd have to apply borium or some other "gripping agent" to stop the slipping...but borium doesn't provide any sort of leeway in the movement department. When their feet hit the ground, they stick hard, which is very hard on joints, muscles, and tendons. I've seen more horses with blown knees/hocks and bowed tendons because of borium tipped shoes than anything else.
My very best suggestion? Get a good pair of hoof boots that fit your horse. That way, you can go barefoot, but still have a good slip-resistant option handy if he starts to seem ouchy.