472kHz WSPR this weekend

As 6m is not showing much of interest, I shall probably switch to 630m (472kHz) WSPR this weekend when I am not active in the 2m contest. This should mean I'll be on evenings and overnight (80% RX, 20% TX) with about 5mW ERP from the earth-electrode "antenna". I have still to try my preamp on 472kHz.