It depends on your area and kind of "traffic". I have switched between Muck boots, LL Bean and another for few decades. Looking in my field notes, if it is a place where little hunting pressure or no hiking trail the scent left matters (especially getting into a bedding area). One thing I do to my non rubber boots is I treat them (old Marine habit), I use Montana Pitch blend on the leather. In past when I did not or used something else, the deer seem to react to the other sealer, not as much if at all with the Montana Pitch blend. I cann't prove it, put I believe the Montana Pitch blend, helps keep my scent from "puffing" out as much. I have never had a deer react to my "trained" rubber boots. I always have bloused my pant trousers, out of habit and think this helps as well.