Yeah, I don't have a room where I can put them with much isolation from the rest of the house.
It seems to me that the most effective tracks have been bass-heavy ones played at about 80-85 dB. Things seem to improve most, albeit incrementally, whenever I can manage to play a few hours of those.
Clayton emphasized when I talked with him that the 15" woofer are pro drivers with, if I recall correctly, an accordion type suspension that really needs to move and stretch and limber up.
Bass certainly affects perception of upper frequencies, but it really sounds like this corundum mid/tweeter needs a good bit of break in as well. And the capacitors and fairly long runs (for a speaker) of wiring.
So far, the bass has gone from boomy to more textured and balanced, the midrange and treble have opened up, and the screetchiness in the treble has eased off.
It's very fortunate that I heard a fully broken in pair at LTA. Although I initially said "nothing horrendous" when I first got them setup, things have not been very pleasant during the first 120 hours.
At least there is clear evidence that things are moving in a very good direction. This was all expected from other people's comments, of course. It's just different living through it and wondering if it will really get better.