gotta love when you are 10 days from your first derby and you realize the dog is not checking up. He is blowing past the close bird (100 yrds) and going for the long gun (300 yrds) inline double. Pretty sure it has to do with the 12 inches of grass that is hiding the bumper. He steps on the bird but since he can not see it he keeps going. Have talked to some people to get an answer and trying some new stuff now. Curious what others have done.