I am just back from D4! Back to PA. I did around 190 QSO, around 3.5 h airtime (family friendly mode), always 5W with kx3, internal battery, triple leg ant on dx-wire pole (10 m), on the beach, with strong wind and sun in my neck, paper-logging, kent twin-paddle.
Reached up to Europe, JA, W's, PY, VY, LU, UA...(14, 21, 24, 28 MHz)
Will publish more details, a report, pics in the coming days.
I am now convinced that with 5W you can reach very far. I even see good reports on reversebeacon.
Now I am tired...On a transfer stop in Gambia last night I also met the president of VERON.
DL3LUM / PA1MUC