As many have said here being a Dom or a sub and being good at it requires first that it is you naturally then you have to learn and work at it to develop the skill.

Those we call switches I really don't understand but my guess is that they aren't great at either role. This is just my sense of it not a fact since I learned my lesson once with a natural Domme that tried to be a slave for me. It didn't matter how much she wanted to be mine she just never could please the Dom in me.

Oh well.