I've got them on 6900 kHz USB this time, which isn't unheard of...but 6900 kHz LSB seems to be the normal frequency. Not sure why they're using USB or if this is even the same group (the timing seems a little off). Similar-sounding traffic to what's usually heard on 6900 LSB later in the evening. Stations calling into the frequency (or net), giving signal reports, pretty standard operating procedure for 43 meter freebanders (and 11 meter freebanders).
Still hearing sporadic Spanish language chatter at 2319 UTC.