"They" already make the vast majority of pickups on machines, because the function of scatterwoundness is that there's air in between the wire (soon to be wax) and that somehow, an imperfect field disrupts the electric function of the thing is a way that is supposedly pleasing to the ear. Bill Lawrence, Lace, EMG Hz, there are tons of pickups out there that work "perfectly" which provides a louder, wider-spectrum output. But the argument of course runs that it's the imperfections in output that give it "soul"... like a handwound computer that turns people blue and snaps in and out of FORTRAN. Or like why unison guitar melodies sound good because they're not quite exactly unison. Jason Lollar has done a lot of writing about "air" and wax and pleasantly microphonic PU's, but I can't find it right yet.