To see if this wire is the culprit, I decided to replace the terminal with a newer, tighter spade. I began by cutting the old connector from the actuating wire.
I then attached a new female end, both crimping and soldering the terminal to the wire (I will ALWAYS solder things like this to ensure a solid connection).
After coating the new connector as well as the connector on the solenoid with 3M Dielectric Silicone Grease for corrosion protection, I reinstalled the wire. While I was in the area, I cleaned up the 12v lug from the battery along with the connecting post. Applying more of the Dielectric grease and a new lock washer and nut, I returned all wires to their proper home. Time will tell if this will be the solution to my intermittent starting woes.