I use a strange strategy of keeping The Two Towers Multiball from starting. I meticulously unlight keep letters so balls never lock. Two towers is the easiest to start and the easiest to complete. So, I leave it unstated while I accumulate everything else that is required. Once I have EVERYTHING IN PLACE, I start TTT, and then Detroy the ring. I think it's a solid strategy... But I've still never achieved Valinor. I have made this exact same scream many times. At least with my method, you only need to start all the MB modes to take another run at it.
It's going to work one of these days.