Off nights are easier for sure, girls are way more approachable as their guard is down and there are less mother hens patrolling the group. Lots more 2 sets and an occasional one set is not unheard of particularly if she is new in town just out to get a taste of the nightlife. Nightclubs are a dead duck for the most part unless you are good looking, its very difficult to hold a conversation but it is effective for caveman game, if Im drunk thats usually my default and generally it works.
He who dares wins - Del Boy