Hi Karel,
Those examples should have the same effect. The purpose of -moderate_mask is to allow one to censor based on some external time series. In the case of the Euclidean norm, there is no need to worry about large negative values in the -moderate_mask option, for example, since the values will be non-negative. For those starting with a 6 column motion parameter file, or even an enorm input, there is little reason to use that option.
- rick