Well, if you would like to have a more vintage and woody tone out of your neck pup, get a switch to bypass all that electronics...
Plus I have to say, all those little wires of the preamp are of medium quality, so when you don't pass through them, your sound is less "filtered" by the bad wires.
It's possible to have it entirely re-wired with some high quality wire but it would be a lot of work.
So I just keep it in passive , and have a good wire quality on the passive circuit and the sound is really pure, and I never feel the need to switch it in active... I could keep it battery less, tbh