There is that pull-up resistor in the Speed Control Servo, however with the BPP open (pedal not pressed) the best signal that would provide as the clutch was released would be a very small "glitch" if anything.
This is N2MB's generic clutch switch diagram:
They do not state whether the switch is normally open or closed.
If it is normally closed then when the clutch pedal is not pressed the signal to the WOT box is held at ground level. Just as soon as the clutch is pressed the switch opens and the 1k resistor pulls the WOT box green wire goes high signalling the box that the clutch has been pressed.
OTH, if it is normally open then when the clutch pedal is not pressed the signal to the WOT box is held high via the 1k resistor. Then when clutch is pressed the switch closes and the WOT box green wire falls to ground level--signalling the box that the clutch has been pressed.
Does tcstanger' have cruise control? Is it connected and working?
If not, or he doesn't want/need it the Clutch Cutoff switch could be rewired to do what the N2MB generic clutch switch does...