Hey Armen
I was thinking of shows in the Metallica trading circle. The fillmore shows the COS-11 source sounded better than the DPA4061s in my opinion. Also just got two COS-11 sources from Japan 11/03, and they are stunning in my opinion. I've heard quite a few DPA 4061 sources from various tapers, bands, and venues, and they don't seem to be as "warm" as the COS-11s in my opinion. A little boomy as well.
I'm talking to a local dealer now about COS-11s, if something falls through, I'll probably end up going with the DPAs.
Thanks for everyone's help. I'd +T everyone, but I don't think I have enough posts to do that yet.