The Final Piece Of The Puzzle
Our final interactive component of this whole mess is the guitar's output impedance. This impedance is equivalent to sticking a resistor in series with the guitar that lowers volume somewhat. Almost all stock pickups have a relatively high output impedance, while active pickups have a low output impedance. As with amp input impedance, this interacts with your cable to alter the sound. Any cable capacitance will be accented if the guitar has a high output impedance, and have less effect if the output impedance is low.