I am finding a lot of great tables and rule of thumbs for the yard and mph setting. But I am drawing a total blank looking for the same with meter and km/h. For example the ‘divide with 3’ for elevation.
Anyone know where I can find these things for the metric setting?
I am not aware of tables etc., in the SI system (there certainly may be some) but the "divide by 3" is an approximation. In general it makes it easy in the English system to modify equivalent distance required by the ratio of yards/feet (3 feet = 1 yard).
You may be able to find out more information in a CC with a good number of players that use the SI/metric system. (I would recommend finding a CC with a significant percentage of players in every tier - including the higher ones - since they will have the most experience).