How would you have time to hunt? Your entire trip should be spent caring for your sleeping bag?
I don't know about you guys, but by the time the sun breaks in the mountains, I'm out hunting, not deciding whether to "air-out my bag" or not... The only thing I may dry on a hunt will be my socks.
The difference between your down bag and the bag I'll be using; approximately two cups of coffee. If you can tell you are heavy on your feet due to the two cups of coffee you've had since you last relieved yourself, then YOU GOT ME.
Leave the down bag at home and HUNT.