I shoot at a club in MI that has was different "grouse walk". A standard trap house throwing trap targets, but instead of lining up 16 yards back, they have 6 walkways radiating from the house, from 9 o'clock, 8 7 5,4,and 3 o'clock. You load a shell, and begin to walk towards the trap house. Then the puller releases the bird at random times. The squad shoots to each station around and back, for 12 shots, then around with doubles. Take your option after your first miss Great fun, and a good simulator of shooting over pointing fogs