I wasnt there last night but generally there is at least some crossover at Spunk, Adonis, BD, nowhere etc but I usually see at least some new faces at Spunk and BD. I never had any trouble getting anyone to pay attention to me (when i wanted at least) and there are generally multiple dancers without customers at any given time in my experience. I do have my favorite that I will normally see but I certainly don't take up all his time. Maybe an hour or so out of a given night and thats not always all at once. A dancer is understandably going to pay more attention to a customer they know is going to tip them well so maybe try tipping something upfront next time if you weren’t already doing that. Other than that maybe try approaching them first if you weren't already though haven’t felt the need to do that for the most part.