So this has all been very interesting. I hope people outside the states will have a chance to watch this documentary at ~ the same time as the US viewers, without the surprise being 'spoiled.' It seems almost certain that Derek Roddy is out of the equation, which will surprise nobody. He is a great drummer, and very well known and respected within death metal circles, but I think everybody knew he wasn't going to fit well with the DT sound. He even said something to the same effect himself. In fact I can't think how anybody within the DT camp would have considered him a potential replacement. A cynic might say that he was only included in the audition process to attract interest from fans of a completely different genre.