Best time (usually) to rifle hunt a type 6 in WY unit 9

[NativeIndian]

Alright all you WY unit 9 hunters, I'm trying to capitalize on a Unit 9 type 6 tag with only a few days available to me. My question is: what timeframe is usually the best to be able to see cows in a small window as I will not have but a few days to hunt. I'm guessing after the snow pushes them down and probably onto Sheep Mountain. I thought I'd get some real, honest ops here instead of on fascist book in a hunt group there.