Hello again, Kinetic. It looks like you are in a different location (Boerne?) than in your last thread:
Roof-top Antenna recommendation
http://forum.tvfool.com/showthread.php?t=15983
Thank you for the signal report. You say your antenna is 25ft high, but you used 10ft for your signal report. Please redo your report at 25 ft; it makes a difference with 2Edge signals.
A preamp will help with the weak 2Edge Fox signal at 140 degrees, but it might be overloaded by KNIC at 115 degrees. A more directional UHF antenna might be necessary. Try a medium gain preamp that is less likely to be overloaded than a high gain preamp, before switching antennas. Perhaps an Antennas Direct Juice or a Channel Master 7778.
ABC and PBS are VHF, so you might be able to use the 7694 just for VHF or have a separate VHF antenna.