Killswitches are great fun. They’re a great way to incorporate some hard-hitting rhythmic gated sounds into your playing technique, especially if the switch is somewhere easy to grab! The sound often used by Buckethead or Tom Morello creates a silence when the switch is depressed; release and your guitar sound comes back, simple. The way you use it is where the genius can strike!
There’s lots of buttons and switches online so the choice is yours, but you must keep in mind the mechanical resistance – you’ll want it to be easy to activate and not tough like the