Oh man, I thought about you yesterday evening. I was in the woods in thick hemlock/spruce cover, atop a large flat edged on one side by a loong, steep bluff dropping to a streambed, with the wind blowing my scent off the bluff. Deer sign everywhere. Here's what I came up with for a grunting setup:
The bluff is an impassible barrier, right? (It's almost completely vertical).
Set up tree stand on edge of bluff and hunt it in a prevailing wind blowing your scent off the edge into the stream valley below.
Grunt as much as you want. Any buck checking out the bedding area upwind of you cannot circle downwind of you unless they grow wings and fly!
They'll likely try, and just end up walking the contour of the bluff straight in to your stand from either the left or right.