I think this is a topic where you're going to have diametrically opposed viewpoints.
I usually ask them. If they give me a good dance I ask if they'd like to go to the room and if they say yes give them the number and specify that it's for them. I try to know typical prices for the club before I do so & I offer what I think is a fair price & what I'm willing to pay. I don't get into exactly what we're going to do, especially here in south Florida.
I find the quality of the dance, which is more about being responsive and interactive than it is about being permissive, is a much better indicator of their performance in the room than any sort of silly games to get leverage. The percentage of dancers who I find attractive and suitable to my style of entertainment is so low, I'm not gonna risk one getting away over some silly attempt to gain leverage over her. I'd rather engage in a fair transaction in which both of us are getting what we want.
In my experience, if you're talking about south Florida clubs, particularly Pompano where you're one review is, getting "leverage" by playing the field is pointless at best and most likely counterproductive.
Pulling shit like that on girls who are cultivating regulars will have the opposite of the intended effect. Those girls are more likely to go the extra mile when they see a potential regular, if you're playing the field and spreading your money around it's not worth the extra effort. Very few are going to engage in price wars, so they're not gonna cut you a deal either. But they might latch on to another customer or have a regular come in, and you'll never see them again.
For the ones who are looking to fleece a tourist, they're often not gonna bother to come back at all. They're gonna shoot their shot in the first encounter and if they miss, they'll move on to the next target. If there aren't other targets, they'd mostly rather sit in the corner chit chatting with their friends than make another run at the same person. If they do come back, you're not likely to get above average service from them anyway.
For the ones who are mechanical, that's simply what they are. The reason they're that way varies, but the result stays much the same. They don't know or don't care enough to more than hop on and bounce or bend over and present. They're typically the biggest hagglers. I don't generally haggle and I don't typically intentionally wait to be ask, so I can't compare directly. But these are the girls that will come out with a number, then drop it when you say no. Or they'll counter if you throw out a number. I don't know if its the haggling that leads to a mechanical performance or the ones who are mechanical performers that tend to haggle, but it rarely works out well for me. These are also the ones who are likely to come back, half the time with no recollection that they just interacted with you less than an hour ago, so I don't know how much leverage you're really gaining.