It's probably easier for me to create a new file with Franklin County TRS, FC Analog VHF and Viper. Then you can tinker with it.
Just a few questions.
Other than removing the 136.5 CTCSS tones on the analog channels, adding ATT to the site and lowering the Data Decode Threshold, was there anything else that you modified?
Here's the system, so you can take a look at it:
North Carolina VIPER Trunking System Profile
www.radioreference.com
What part of the state would you be considered in? I have no idea what Piedmont is, sorry.
VIPER stands for "Voice Interoperability Plan for Emergency Responders" and is divided into 4 "Zones" (or RFSS):
Zone 1 is the central part of the state. I'm guessing that this is Franklin County's zone going by the RFSS.
Are there any other neighboring counties that you're interested in listening to? That would be depending if you could hear them or not.

Zone 2 is the western part of the state.
Zone 3 is the eastern part of the state.
Zone 4 is the piedmont part of the state.
Also, I think that I'm going to add a Scan List with just the control channels for the Franklin County VHF system, just to see if you can receive them on their own, or we could try the same thing in "Tune" mode under search.