The last time I set up the targets I stretched a cable down a hill side put a deer target on pulleys. I set up a board you had to step on to trigger it, if you missed the vital area then you had to walk up the hill and set it up for the next guy. I stayed up on the hill and set it up for the guys that hit the vital area. You would not believe all the complaints about how fast it ran and being off balance when it showed; I ask them if the deer all ways waited till they were ready. Lee