It works in very late season well after the rut, too. Late December. I killed a buck that was running full tilt up a riverine that another hunter had shot at. I had small pieces of clothe tied in a tree about 6 feet high with drops of estrus on it. Wasn't Tinks, was something else, I can't remember, came in a little white plastic bottle with a flip up sprout.. That buck came to a dead stop when it got near that tree and threw its nose up in the air. Looked like he had a WTF moment.