You should be able to place your leylines (i.e. the place where you want to stay) so, that it's half on the first cone and half on second cone.. so that you're able to minimize movement.
https://www.youtube.com/watch?v=2EvqyEVIY60#t=6m20s
Like were the AST in this video is standing.
You may get those annoying circle AoEs to dodge, but if ppl are smart, they won't screw you additionally by placing their AoE on top of you, too. :D
My motto is "Never stay between a boss and a BLM, behind a BLM or on top of a BLM". Their life is hard enough. :p
I love A3, when all ppl stack (foolishly) at the beginning and all blueish "push-away"-cones are aimed in direction of the poor BLM. :rolleyes:
