Archeryrob
Undecided on a great many things
You'll never get rid of 100% of human odor, but you minimize it to the point that your scent is that left by a human(farmer, wood cutter, etc.) a couple days ago. And yes, a deer's olfactory nerve can differentiate scent freshness that well.
I go the other way, I don't use any cover scent and I hunt the wind period. I use Marabou as a wind detector. I have it on my bow, see the pic, and I can see which way the wind it moving it while hunting. Also one on floss I can pin to a tree in front of me. I check the weather before hunting and pay attention to up hill/downhill air movement.
They will never smell you if the wind is blowing from them to you. I am trying to move from stands to ground hunting. You need several stands to hunt one spot and hunt the wind. For gun I am done and switched to a turkey chair. Its amazing hiding in tall grass and the deer just don't expect anyone to be able to hide there. I am building a lean too chair for trees to be able to bow hunt on the ground and maybe a ghillie suit or just hunting the thick stuff.