The main thing I don't understand is why someone would buy a deer from 1200 miles away if they can get one that is comparable from their area that will be climate adjusted. I know from my personal experience the northerns have trouble this far south, and believe me I am deep south. I can step in the gulf in thirty minutes. By the same token if I shipped you a deer from this far south he would freeze to death the first winter. The hair on the northerns I tried to raise was probably ten times as thick and twice as long as a southern. In the heat of the summer I felt sorry for them. I would never say they can't be acclimated but I think deer moved laterally will do better than deer moved vertically if being moved long distances.
I know that many people disagree but I believe we almost need to start with a southern doe and AI to the northerns to get them acclimated to our climate. Most of us want the northern blood because we love the size and speed at which a northern matures, it takes about 7 years for a southern to reach his peak. We will soon know if this works because there has been hundreds, if not a thousand, of southerns AI'd to northerns in the last few years.
I do understand why people with open borders feel the way they do, I might would feel the same way if I had not have lost $25,000.00 worth of northerns last year.