Thanks for reporting in as well.
I don't doubt the Yggdrasil, but I do wonder about the M9 being almost too neutral. I've got a Phoenix now and sometimes I feel it's almost taking some of the tonality or colour away from the PWD MkII. I'm not a ----DEAD NEUTRAL---- kind of guy. I like a little masking, a little emotion, a little euphoria in my music. I'm listening to be taken away and get my foot tapping, not to study the music. Because of this I have some plans for recapping and swapping some parts in the Phoenix which I've read adds some of what I'm looking for. If not then I'll be on the hunt for something else.
Any thoughts on whether you think think it's the Yggdrasil vs. the SA-1 that's taken the colour out of your music or the M9 vs. the V200?