Holy crap, all of you are over-complicating this, jesus christ.
http://i45.tinypic.com/33joewn.jpg
That's how we did it. Since it's in swedish I'll explain, on the first platform (left, guoshi) you just stand on the black arrow, and after 3 shot (2 shot right of you), you just move to that slice.
On the back shrine, yang, you stand one slice left of the entrace, and after the first shot you move one slice to the right.
And on the last shrine, the right one, with kun, you start on the 3 o clock slice, aka on the green dot. After you've been hit ONCE, move to the slice left of you.
This minimizes movement, and makes it much easier.