Yet again, 472kHz is proving a real disappointment. Not long ago I found a list of all the stations that had copied me on 500kHz WSPR with very similar ERP to my present 472kHz ERP. The list was about 5 times longer, showing the level of WSPR activity on 500kHz a few years ago. Although I'll leave 472kHz WSPR running through the night I very much doubt I'll see new reporters by the morning.
Tomorrow, I shall try 10m WSPR instead.