Personally, I am a switch. My current Master has changed the way I submit... opening me up to the idea of more pain than anything else. I was never too hot on the idea before him and never really used it with my subs. But now... I need that kind of domination... I need the pain. The Sadistic/ masochistic thing works for me and Im pretty sure that its just because of him. No-one else could get it work for me before him and I doubt they will after.