Meffeo,
I just settled on my final list as well as the SB.

My main list is the standard quad laser pure and simple. The side, however, is really interesting.

3x Decay
3x Claim
2x City
2x Firestorm
2x DR
1x Iona
1x E.Norn
1x Ashen rider

I have been testing this out and it covers a wide variety of hate. Decay and Claim cover two different types of threats and can also be used in conjunction with each other of the situation calls for it. I ran something similar when I came in third at an IQ on the east coast and it worked rather well.

To answer your question about Coliseum, I run three to better supplement the Abrupt Decays. Seeing one is OK. I never want to see them in multiples. Ever. It rarely comes up when I'm banking on using it.

I do appreciate the reply Meffeo.