I've heard that it is very hard to match outside your home program's region. What if you're from the south (born, raised, high school, college, spouse from south as well), however, for some reason went to med school in the midwest, but want to go back south for residency? Will doing aways let programs know you're serious about their program? Phone calls or letters? Or is my southern background enough to get me back below the M-D line?