Early Es on 10m WSPR, but 6m quiet

There was breakfast time Es on 10m WSPR with DK6UG (633km), OZ7IT (853km) and DK0SC (827km) all spotting me. I stayed on 6m through the night but only G0OQK (98km) and I exchanged spots on that band, but no Es DX spotted here on 6m. I should have gone to 630m overnight!