What is tipping etiquette at large fancy clubs?

I visited some beach clubs recently.

At a fancy club, Thee Dollhouse I saw an older guy tip a dancer a five. I saw very little tipping at all so it was hard to determine. Apparently in Myrtle Beach the people who sit at the stage are expected to tip a lot. The stage seats were empty most of the time. I tipped one dancer at Thee Dollhouse two dollars and I got the impression she thought that was a low dollar amount. I decided not to tip anyone else. Another dancer didn't give me that impression but I already bought dances from her and a drink or two.

Over at The Masters I sat at the stage a few times tipping usually two singles at a time unless someone came over I wasn't interested in. One dancer who wasn't my type seems awfully aggressive pulling her garter or rubber band back 4 times before saying something that she expects everyone who sits at the stage to keep tipping. Talk about entitlement. Most dancers did not act this way at the club. I see why they don't have many chairs next to the stage though and why not many sit there.

Should I be required as a customer to tip every single dancer at the stage to come over and want a tip especially if there are up to six dancers on stage at a time and I'm not interested in the one who decides she's going to keep asking for tips? Should I leave the stage if I'm willing to tip everyone at least two but don't feel a need to tip more than that per song? For 98% of dancers at The Masters, this wasn't an issue. I didn't mind sometf the hotter dancers coming back to me more than once. It was the rather aggressive dancers who weren't my type.