The first drop happens when Pulp asks him for a specific trick, Corbatines, although after the snap start he has no problem with it. When he does the Wheel of Fortune while twisting his body I imagine he wanted to move the top around his body while keeping the same movement but he did not succeed (but saved the top). At 1:08 he lets the string on the ring end drop and pulls up on the button side of the string with both hands: I wonder if it was a trick or a save.