Yea, i was thinking about this too. But then i too thought that why i don't just improve my EOC system?
It would be like:
Monitor speed signal and clutch.
If speed is above 40km/h AND clutch is depressed, do EOC.
But then it would additionally need some thing that if clutch is depressed, say 2 seconds, then it does the EOC.
All it would need is a signal from MPGuino, some easy frequency based switch and an sensor/switch for cluth, and maybe 555 chip as timer.