I’m in Atlanta and get NBC (WXIA channel 11 VHF) perfectly with my M4 (9.5 inch whiskers with 9 inch spacing between bays). It comes in at an SNR of 28 out of 30 which is over 90%. I’m 31 miles from the broadcast tower.
A reflector would help immensely so it may be that your 4 bay would benefit from a reflector on VHF. It is easy to make your own reflector. Cut out a piece of cardboard from a box and overlay it with kitchen aluminum foil. Tape the foil over the cardboard. For VHF through an M4, the best reflector size should be 40 inches tall by 36 inches wide. Position the reflector 4 to 5 inches from the antenna. BTW the reflector does not have to be attached to the antenna. My reflector is on a separate pole behind the antenna. The ChannelMaster 4228 antenna was known to be good at VHF BECAUSE of its reflector even though it was marketed as a UHF antenna. The reflector was essential to the 4228 for VHF reception.
Take a look at these YouTube videos on how to add a VHF component to a UHF 4 bay:
They basically add a long dipole at the top of the antenna and join it to their M4. Also visit this website - has good plans for adding the VHF dipole to a UHF 4 bay (scroll down to see the picture towards the end http://www.loopy.org/pictures/galleries/Dixon%20Ranch/November%202009/_thumbs/700x500-DSCF5310.JPG):
http://countryplans.com/smf/index.php?topic=7924.0
Here is a picture of a solid aluminum foil reflector (and instructions):
BTW I used a roll of extra heavy aluminum foil (thicker and stronger) from WalMart. My guess is that you may not need to add the dipole to the antenna if you add a reflector. However the reflector will block any signals you may be receiving through the back of the antenna. In which case the added dipole will be the solution rather than the reflector.