I used to go to Clancys a while back and would like to have banged Iris and/or Chris but what i've read it takes some effort putting time into chatting these gals up and buying drinks to initiate an otc experience. I've heard it takes around 3 bills to make it happen which seems high compared to going to a place like BSC for a guaranteed thing with a younger gal for much less effort.
It doesn't take much effort depending on your game, who you're aiming for and how often you show your face.
The chances of absolute first timers going there, talking with a girl at the bar, then leaving with her that night for an OTC session is tough. However if you go there about 2-3 more times on the days that girl is working, and your chances shoot up to almost 100% OTC.
Some girls are tougher. Some girls are super easy. Some girls want lots of money, some girls want min or not even money, just errands.
The good news is, if you pick the right girl, once you're in, you're in with all her friends. You become part of the network for OTC. It's a very fun experience.