One should be aware that the precision level has limits. As an example, in a MTM or UTM projection, Latitude cannot be given with more than the millimeter level (the US-Canada border is roughly 4,500,000 meters North, leaving three digits for millimeters). But for safety reasons, one should also consider the roundings that are possibly done on the last digit and put their trust more on a lower level of precision, the cm in this case. But in Non-Earth tables, this constraint can be pushed back further. This is another example that precision considerations are specific to each work environment and that the user must understand the various parameters that determine the results.