You do know that having two seperate antennas that close together on the same mast probably hurts both of their reception capability right?
Antennas should be 3+ feet apart.
You could use the bottom antenna for FM reception as it is VHF/UHF (top one is UHF only). Splitting the signal will reduce reception on each leg by 3 decibels, so should be fine, depending on alot of variables.