You say topping from the bottom like its a bad thing.
I would suggest you are confusing t-f-b with a submissive personalities testing of limits. Yup - newsflash - even Dominants types have limits. I often find that dominant personalities who profess to know 'Topping from below' are usually only doing so out of frustration at not being able to control the situation they are in themselves. And they often define dominants who they assume are topped from below as weak or new or careless or 'just in it for the kink'. So what if someone is in it for the kink... does that make them less of a person?
A good dominant personality doesn't need to take charge - a s-type will submit - pure and simple. If your suffering from a lack of ability to control a person, it is because they haven't submitted to you. That isn't a sign of weakness, thats just a fact.
Oh, and for your information, not all s-types are girls. Many are women. Many are Men. And equally - there are some boys as well...
Peace and Rapture