I live and hunt in Allamakee. Never personally hunted southern IA but here's my thoughts. Southern Iowa is leaps and strides ahead of us in management, timber stand improvement, and food plotting. We are getting better as more and more farms are being sold as rec. farms. The winters are considerably less harsh in the south and more importantly spring green up is easily 3 weeks ahead of us. I believe this is crucial. I believe our quality of deer is very similar but southern iowa has more big deer. I see maybe one 160+ on a big food source late. And have buddies down south that have several of that caliber on a plot. We have a lot of big open timber that may contribute to that. As of late on the several farms I hunt it seems we have been bitten by the 140 class 8pt bug. I see 5 of them to one 150 class 10pt. Anyway you dice it. I wouldnt change much. Love chasing mature deer and hope Iowa laws continue to let us keep doing so.