The NACs have not changed. Have you monitored them with this radio previously? If so, the following is old news to you.
I live about the same distance from Mayfield as you and cannot pick-up the Graves tower. You may have better luck with the Hickman and Ballard repeaters. If you haven't yet done so, enter all the Post 1 towers. Sometimes, the closest tower isn't the best for your location. Also, ensure that the freqs are programmed as FM, not NFM.