Seeing that video was shot 8 years ago in Laguna I'm going to go out on a limb and say mainly Victoria & Slotstick with 2 peole riding Chiaskim prototypes that would 1 day become Exile.
I surf behind the boat on my vic skim and love it . I dont even use the regular boards anymore. Its a little weird to get used to but once you get it , its fun. you have to keep a edge with no fins