When I scout or walk in the woods or on power lines, I will pick a spot and look directly at that spot. Eliminate everything on each side and the lay of the land. I then estimate and use my rangefinder for an exact distance. At one time I would try to split the yardage or break it up in 20 yard increments. This didn't work for me, especially when shooting in the snow or from a wooded area into an open field or power line. Look directly at the target, even if you must cup your hands along side you head, like a visor, to eliminate all clutter that may throw off your estimate. Once you have estimated yardage, use your binoculars to eliminate small branches or obstructions in the arrows path. After a season of practice I'm making very accurate estimates. A quality range finder is a valuable asset when stalking.