Creativity is a must. All the dogs are not the same. I have had a few that just went all out like a blur on everything they tried. Others had to be baited. Some just were not good workers. I think the percentages of workers increase with exposure earlier in life. I try to get all my dogs standing on the mill early on. I let the puppies play in the yard and I ride around on the four wheeler. They get use to chasing it. Then when the time comes there are no real surprises for them to over come. EWO