“Beware; for I am fearless, and therefore powerful.”
Careful dude! There is lots of recklessness involved. This might be the single purpose of this machine.
There is only one limit in this ongoing proces of scratching, burning, sanding, painting and what-have-you – and that is not to damage her in such a way she ain’t never gonna be playable no more (or will sound bad).
Auto-mutilation ≠ suicide.