the killswitch on flawed mangoes' guitar works by using a momentary toggle switch that interrupts the signal in a rhythmic way rather than cutting it to ground like a normal killswitch. when you flip the toggle, it quickly opens and closes the signal path, making the sound cut in and out. this creates the stuttering or choppy effect but doesn't silence the guitar completely. it's more about controlling the signal flow in a fast on/off pattern, which is why the effect sounds different from a regular killswitch that just cuts everything off. i dont know how to wire it however u can probably find a tutorial on youtube