RE: best early season scent
I also would say none,if you are looking to kill a mature deer.I wouldn't want any thing to be at all unnatural about their area,nothing to raise suspicion.Young deer are more apt to come in to a food lure or a curiosity lure.
If I was going to use a lure it would either be a James Valley product,a Kishels product or the tarsal glands off a buck or doe I had killed.