I fed it in the past and had great results. I know when they first started they had some quality problems, due to the mill that was making it for them. Since then they have a mill out of Ark. make it for them and they have real good quality control from what I hear. I don't feed it anymore because it is not very accessible. If I could get it easily I would use it myself. I also heard that Clint Avant is useing it. He is one of the top derby trainners right now.