I turned on my 500mW 10m WSPR beacon very early today and was rewarded with a spot by DK0SC (827km) as early as 0558z. This was the only spot so far but it was very early for Es.
UPDATE 1130z: No further 10m Es spots all morning. I was lucky to be caught this early.
UPDATE 1354z: Plenty more Es seen on 10m WSPR but 6m WSPR has again been a dead loss here.