Buddy of mine swears by it. My technique is a little different. Feed what the snake is used to (mice) until it hits a shed cycle. Skip that feeding, even if they would normally eat during a shed, or they've finished shedding by feeding day. Offer them the new prey item while they're on empty on the week after. Scent it with a mouse (by rubbing the rat feeder with a mouse F/T or dirty mouse bedding) for better success.