You've made me so happy Dave. Hopefully the camera reset feature that makes aiming AoE skills a joy is functioning for you. (If you press the Back button, your cursor should jump back to a center-high point).
That's my solution (created alongside WeltallZero). It was indeed a game changer for me, and you are right on the money- you get it down to muscle memory and you are golden. I've used it for the toughest content in the game, for PvP and WvW as well. Just watch how effortlessly it translates to playing another class if you start one
I sincerely believe I wouldn't have played nearly as much and as often as I have without it.
Welp I'll be running an hour or so of havoc-y havoc tonight at reset on an enemy Borderlands if anyone wants in my partay!