In my humble opinion...
Like the lion and the tin-man combined, a good pro domme has to have a brain and a heart.
She has to be able to be "intellectually attached" to what she does professionally, in order to give a worthwhile experience to her clients. She has to be able to get into his head, and make him think the fantasy is real. All the while being safe and sane.
She has to have a heart because she really will be taking care of the guy, emotionally and physically. Some fellows have some pretty bizarre requests, and it takes a very patient and understanding woman to put them at ease, to feel comnfortable opening up to her. One domme was tellling me about some of her clients' requests, and I thought "she must be the most caring, patient, understanding person on Earth". Just getting beat up isn't fun, but getting beat up by a woman who can capture and control your immagination is a whole different level.
So far I have only visited dommes who also offer sex; usually forced sex on me. And I prefer bigger ladies, but actually any woman who can do the above would be great in O-town.
Keep us posted, Tracey