I did another 24 hours of burn in at high volume using BenF's track he posted earlier in the thread. Yes, the bass did calm a bit more and the slight boominess is better, still.
So advise for anyone picking these up. Burn them in with a track like Ben's at high volume for about 40-50 hours.
The boomy thing may not be a problem for most considering my favorite IEM's are Phonak 132's so I obviously like a more lean sound sig.
The bass issue I'm having(which isn't bad at all, just not my perfect sound sig) is more noticeable on metal music. On other music including non metal rock(Alice in Chains, Radiohead, etc) they sound great. My problem is more than half of my listening is hard fast metal. And female singers like Amy Winehouse, Portishead, Up Dharma Down sound fantastic.
I'm really liking these, more as time goes on.