Last Tuesday morning I had a buck, doe, and yearling come out of the brush downwind of me. They were grazing in a food plot I'd put out and I was in a doghouse blind. I thought the yearling was going to put her head in the window. She came within 4 feet of blind and doe was right behind her. The buck didn't come within 40 feet though. The only scent cover I used was three of those earth scent wafers I had pinned on. I guess they must work.