Putting T1 drivers in a DT880 shell isn't the best idea. I did this a couple months back and found the T1 drivers to muddle up due to the DT880 internal damping being right against the back of the T1's drivers. Similar to my T1 damping mod, but way worse. The thick felt in the DT880 cups really do limit the T1 drivers. If you want a better effect, try DT990 shells. They are a lot more open and iliminate the muddled sound, but are different from the stock T1. You get a bit more air and the sound seems slightly brighter.
But anyways, after a terrible nigth and two hours of sleep, I sit here refreshing tracking on the Amirons Homes quite often. Says they are out for delivery, so hopefully they don't take to long to get here.
Once they're here, I'll compare them against the T1, DT990, DT880, HD700, and HD800. If anyone wants comparisons to my other headphone, just ask and I'll do those too.