Originally Posted by
Adramelch
I'm pretty sure it's been shown that there's no accurate way to properly calculate the amount of leech owed to each person's trinket and distribute the healing accordingly. Afaik, AMR and everything else there is out there (addons, WAs) give you an approximate estimation. If memory serves me well, the WCL creator explicitly said that they don't want to have something approximate that's not based on actual combat log stuff. Whether or not you agree witht that stance (I reckon I'd prefer it if they did, given that the approximation itself is not that bad) is another thing.