A few quick questions on naguras, good people.

Do synthetic and natural stones work the same? What do you all prefer?

Should synthetics be used on synthetic water stones and naturals on natural waterstones? Or doesn't it matter. With my first waterstone (King 4000) I bought a natural nagura, but the King 8000 came with a synthetic.

And - do you need to dedicate a nagura to a waterstone, or is it ok to switch them around??