RE: Winter cover scent question?
Since you are from Kansas how about corn, or soybeans, or wheat? If I were to use a scent right now, I would be looking for something that the deer are looking for, FOOD! Find out what their primary forage is this time of year in your area and 'match the hatch'. IHO That's all.
KEEP IT LEGAL. KEEP IT SAFE. OR WE MAY NOT GET TO KEEP IT AT ALL.