After some bugfixing in the spike display, we are now using the software for our actual long recordings in mice implanted with the 64 channel flexDrive (see GitHub for the EIB design). The dual-screen interface works perfectly and the runtime-extracted spikes look as good as the one we extracted from the full voltage traces.
Screenshot of the GUI (shown here running on Windows), during a recording of spikes and LFPs on 16 tetrodes on a flexDrive.