I found that "hollers" tend to make the wind currents swirl around, which would make it easier for a deer to scent a hunter that is down in a bottom.

I think your pick of a 100 yards up the ridge is a good spot for a stand. My brother had many years of good luck harvesting deer, with his stand about 100 yards up the mountain ridge; since it would make it easier for him to see both uphill and downhill.

I believe the wind thermals switch around 10 am and 4 pm respectively.

Good luck...

Erno