In the second video of his F2L series, Collin talks about how and when to use the keyhole method to solve slots. Other Parts: Advanced Pairing: http://www.youtube.com/watch?v=-3qLnfDZqG0 Partial Edge Control: https://www.youtube.com/watch?v=wjf6-_7TSPM Collin's Channel: http://www.youtube.com/user/collinbxyz Check out our website: http://www.cubingworld.com/ And our Facebook page: https://www.facebook.com/CubingWorld And don't forget to subscribe!