Nice conversation between Buster Olney and Hunter on today's (4/11/13) baseball tonight podcast. Starts around the 20:10 mark.
In it, Hunter talks about scouting the Tigers last year as a potential team to sign with if the Angels didn't work. He played against them in July and thought he'd be a good fit.
Also, fellow Notre Dame haters hold your nose here, apparently the fact that his son committed there, 2 hours away, was an important factor in his decision to sign with Detroit.