I happened upon this blog's roundtable after looking into some of the bracket matrix's outliers in regards to Michigan's seeding. It seems as though they are moving away from the block 'M' that they have been using (see: Jerel Worthy's tatoo). Apparently they are always being misconstrued as Michigan fans and there is some controversy as to wether leaving the block 'M' is a good or a bad thing. There are a handful of references to this in the comments as well. My favorite:
"I wore a black hat with a gold block M on the front for a number of years in Texas. If I had a penny for every time I was asked, “Oh, so you’re a Michigan fan?” I could buy a new hat."
If I had a penny for every time I was asked, "Oh, so you're a Mizzou fan?"...I would have zero pennies and a silver dollar that I got at Blimpy Burger last weekend.