Do we have the rough relative location and orientations of the main_working_sites (longwalls) ? We have depth difference from the column metadata description but perhaps horizontal distance between the sites might yield addititional useful evidence. I also wanted to share with you that additional data are unlikely to yield any improvement over the testing performance as they apper simply to show warnings from different sites from both training and testing periods and as already mentioned testing set also appears to contain very different previously unseen sites. Lots of warnings tend to fire at once for a particular longwall as a one-off rare event hence the representativeness of such a s small testing set (compared to the training set) is doomed to very poor. My view is also that for consistency with the training set, the testing set should also be provided ordered in time :).