Hawkeyes,
Strange you should ask this question? A few of my hunting friends and I were just making the same coments. I also live and hunt Michigan, (The U.P.) There were quite a few deer taken this past season with this trait. Nobody remembered seeing so many odd racks in one year? I don't know what may be the reason, but very interested to find out too!

EAT What You Harvest, Mobrandy