My dog got very good at finding sheds smeared in rack wax. Had to go back to using fresh sheds stored outside to get her past the initial stage and her finding them in the field. I think it teaches them to follow the nose at first but the scent isn't quite right on for field work. Also they don"t tell you what type of horn it is. My experience from shaving horn and using that, elk, moose, whitetail, and mule deer all smell a little different to a dog. Good start up help beyond that lots of work is the only way.