Just discovered this thread after I'd started an almost identical one over in the next room, so I'll be doing a bit of catching up.
I think you're mistaken in conflating submission and masochism. I know a totally owned slave who is micromanaged and controlled, but who doesn't want or get any punishment stronger than a sharp word; contrariwise, I know any number of submissives who want extreme bondage and pain, but are always in control even when they're saying "Beat me harder!"Originally Posted by BDSM_Tourguide
IME, there's no correlation between levels of submission and levels of masochism. In terms of pain, the only consistent difference between sub and slave is that a slave may accept pain that is completely "wrong" and unerotic in order to please hir Owner, and even feel fulfilled by doing so, where a sub would be saying "Red, red, this isn't working for me."