Marc i know that you are far more experienced than me but i prefer to sort the price out before i go so i know what i am up for.
Last July i took two (see sexy girl pics) and as cost was not mentioned i assumed, yeah yeah i know, that the standard 1,000 each was the price. These bearches said that they could not sleep, after the first session and that they wanted 1,000 shirt time each. I tried to separate them and get rid of the one whinging and asked if the other wanted to stay the night and she said 2,000 LT. I got peeved, turfed them both and payed them standard ST price. I had bought them enough drinks before we left the bar so it wasn't as if i was a major cheap Charlie with them.
IMHO ask the price when you ask the bar fine price. If not standard price haggle. I had one at one of the BMs bars try to hit me up for 3,000 LT, not a stunner either, just your average pretty BG. When they start that high I don’t even continue the conversation.
The main difference between FL and BG is if there is any trouble with a FL where do you go. If the problem or anything goes missing with a BG you go back to where you got her from and sort it with the boss.
I know guys who don't let FL out of their sight. Shower with them the lot, and ST only and turf them out when finished. This seems a bit extreme to me.
For a newbie maybe better the BG to start with unless you are confident you can judge them. I prefer to have them there in the morning, no better way to start the day I reckon.
But as always “up to you”.