I'd try adjusting the height of the C2 antenna. (You can keep the VHF dipole where it is.) It may be possible to find an optimum height for WCPO that's higher or lower than the existing height by a few feet.
http://www.hdtvprimer.com/antennas/siting.html
Other choices are to move the antenna to a spot with fewer trees toward the SW, or raise the antenna enough to clear obstructions. By working backwards with your TVfool report, I notice that the signals become LOS with an antenna height of 30 feet.