Hi Robertto,
thanks for your hint. My main goal was to replicate your 20m-antenna. For this I needed the 10 m pole. When using this it was simple to transform the 9.xx m vertical wire in a GP for 40m.
Now, with a little bit more time after my SOTA-holiday I compared this 9.xx m vertical EFHW and my “old” 6.5m vertical wire with one wire horizontal above the ground. I made some simulations using 4nec2. The radiation efficiency, the gain and the radiation angle was nearly the same. The feeding was different. For the 6.5m-antenna I need a ATU, for the vertical EFHW not.
So I guess I will use this “old” antenna also in the future. Shortening the pole (minus 3 lower segments) saves 0.5 kg.
73, Ludwig