K i am trying on a dummy to explain my issue a bit more but i do not get what to do when i run into running the melee combo, while the lower one (the one that should be holy or flare) is proced already, am I simply doing something wrong that leads to that?

For aoe why would i spam scatter, get to 30/30 and moulinet? Don't I wanna scatter > insta cast one element > scatter > insta cast other till I get 30/30, spam it some more where I can use 2 moulinet to be over 30/30 still? I am not really understanding the gauge and why it lights up.