Today seems to have been the best Es day in Europe this season.
Even on 4m with an 8m dipole (tuned via an internal auto-ATU) I have been spotted widely in Europe and I have spotted 4m FT8 stations all over Europe.
So, assuming Es will be as good tomorrow, I hope to try 8m QRP FT8 on 40.680 MHz. I may also try some 8m WSPR.
I am convinced that very low powered 8m stations operating on WSPR using ISM rules will be widely copied across Europe.
In many countries a licence is not needed for beacons on the 40.66-40.70 MHz ISM band as long as national rules are followed. In many countries this means 10mW ERP. On 10m WSPR just uWs have spanned Europe. We know from Australia that 5mW of 8m WSPR has spanned 5000km.