Can't find the video tutorial

[2leftfeet]

Hi, in this video, Betfair - Dutching correct score markets found here, https://www.youtube.com/watch?v=2p6-TU0 ... 9&index=22
reference is made to another video (about 1min 30 secs in) that explains how to trade out of the current position based on what has happened so far in the game, but I cannot find it. Could anyone please either provide the link, or the name of the video please? Many thanks.