I will have to respectively disagree with you fellas comments.
It has come to my attention hunting over the years that the whitetails in Iowa are evolving. Every year, more and more of the whitetails seem to be shedding their antlers earlier. I believe the smarter bucks will shed their antlers before all the gun hunters can get cracks at them. Think about it... if they look like a doe, they can blend in with the crowd. Over time, I think you will start seeing more and more bucks shedding their antlers early... even in the end of November.
If we could get a gun season into early November, then I think we can head off this evolutionary path before it gets unmanagable. What do you guys think?