Another feed for ZDC 133.9 Calvert Low (Sector 11) just went live as did a dedicated 121.5 emergency/guard feed.
Also, a dedicated feed for 121.675 also went live this morning...
I tuned in 127.275 on my scanner and so far haven't heard activity on that frequency. I did see two flights, one at FL400 and the other at FL430 and both checked in on 120.75, so that new sector may be only as needed. I'll add it to the feed and see what happens. Since there's really not too much happening at those higher altitudes, it shouldn't impact the other frequencies much at all.