I find this discussion really interesting. I have been switchy for the last 20 years, and found it was strongly connected to who my partner was. Some I felt dominant toward, some submissive, and for the best of them I feel both, depending on both our moods. But relationships are such complex beasts, and I never much worried about whether I was Dom or sub "enough." One of the things I find exciting about BDSM is each new scene or partner brings its own energy and shifting dynamics to play with. Why drive yourself crazy trying to fit in a particular box (unless, of course, you are into that kind of thing.)