At just before 0730z, I returned to 10m JT65 with 2W QRP. As yet no spots.
UPDATE 1236z: Still no spots given or received on 10m JT65.
UPDATE 1900z: No spots (given or received) all day on 10m JT65. This has been one of the worst days on 10m JT65 this autumn. Mind you, it seems to confirm that if the South Americans are coming through by TEP, you need some means of extending this to northern Europe.