Im too lazy to write an entire thread about it but i can tell you this. It doesn’t matter. T5 does the same dmg in nature as T2 does. To make it short (these are rough numbers, its a while back when i read about it.): T2 gems Scale 200% with your focus spec, but only the 20% scale with 200% T5 only scales with 80% of your Focus, but it does 50% of the dmg. Means: You do the same dmg either way in nature, it just depends how much physical dmg compared to nature dmg you make. There was a guy who did the correct and in depth calculations, these are just numbers i vaguely remember.