Mike,
I think that it may be impossible to put oneself in either category. If you are determined enough, you can delude yourself into thinking that you are seeing both sides of an issue. I think of myself as a very open-minded, undetermined skeptic, but I could be wrong. The way I check myself is by comparing my views to reality. If my assertions are reflected by observations, then I no I am at least striving to be an accurate skeptic. In the end, I think it is society as a whole who decides which category a certain person falls into, not the skeptic themselves.