I have a quick question regarding any kind of kill switch. (fuel pump, ignition, PGM-FI, etc.)

I know the quick basics are to cut a grounding wire and add a switch to it. BUT, would it be even better to use more than one switch on the circuit? ie. a fuel pump kill switch hidden somewhere but on the same circuit, another switch in a different hidden location.

 

Sure, every "level" you add increases security.
I have a hidden kill switch, [SPST,on/off switch] for a PGM-FI Main Relay kill, [ground lead] an alarm controlled relay to kill the ign. input to the PGM-FI Main Relay and a passive arming, latching, relay, w/phantom switch for reset, on the control lead from ECU/ECM to the fuel pump relay in the PGM-FI Main Relay.

A bit of a pain as I have one switch I have to turn off and on and a latching relay I need to reset each time I turn on the ign. the 3rd one is disabled when I turn the alarm off. 94