If you read up on the history of Seth Lover and the creation of PAF humbuckers, you'll see that the impetus for the development was to have a louder pickup. He succeeded. Amps of the 50's were designed to be clean, but lots of the players wanted dirt. Hit the front end of your amplifier with a stronger signal than the design anticipated and there's the "dirt" that we all love. Today we have hot single coil pups that have greater impedance/output than PAF-voiced humbuckers. We have humbuckers in single coil size. Whatever floats your boat!