I'm completely head over heels for the 57/08s in one of my McCartys. Insanely great PAF types, and some of my very favorite pickups.
Super responsive, with a unique 3D quality that's hard to describe. The tone just sounds vintage; it's like looking at an old sepiatone photo.
I often say they just make me feel like drinking whiskey and playing the blues all night in some smoky club.
They also split very nicely indeed.
But they clean up so beautifully simply from rolling back the volume that I seldom pull the knob to split 'em.