Okay guys, just to clarify:
This is NOT about selective picking. Obviously, if you only got for women who show interest in you, then you're going to have a huge success rate (I mean crap, they're already interested, as long as you dont act like a moron you're going to make it).
I'm talking about women who are completely random. You claim to have a 50% rate? I should be able to walk you down the train station, point to 2 random women, and one of them MUST be in your sack.
I'm not trying to be pessimistic here, but I often hear about guys who claim they have a 99% chance success, and I'm wondering if they're inflating their numbers a little, or attach little 'conditions' to their pickups.