mirrored

Hi while browsing I found this: https://www.youtube.com/watch?v=GK1XZCDEP0g Now I'm wondering what pickups are they? Active or Passive EQ? Thanks Nigel

How would that sound? Let's take a thumb BO: the growly tone, the midrangy cut-through-the-mix-like-a-hot-knife-through-butter character comes from the Bridge Js, among other things... What would happen to that character is instead of Bridge Js, the Thumb BO was equipped with Mirrored Ps...