Interesting responses everyone. Thanks. I will also note that I asked over in the LMA thread and streaming is only in MP3 (I didn't really realize or else would have posted flac samples), so take that for whatever its worth.
I wasn't thrilled with the music that night, and didn't even remember switching the V2 out, so honestly haven't given this much thought at all. The brightness note though, is an interesting one. One of my main (minor) complains about this set up is the tendency towards the brighter side of things. I know very little about EQing so try to do it as little as possible, but there have been a couple instances where boosting some lower frequencies has produced better results (at least to me personally on my playback). That said, it does work out most of the time since in general I've found I personally like the brighter side of the spectrum more than the opposite.
I've got a pair of 63s, have the Naiant actives coming, and only the V2 as an external preamp, so will be doing some more very informal tests with these, the 63s, V2 and 680 soon.