Thks for all replies.
Let one thing be clear : I will never speed up when a truck is overtaking ... because I want to get rid of him !
On the contrary I will slow down in order to get rid of him faster.
But if you slow down when they are still behind you they will start hornblowing and light flashing even more.
Now, when they overtake, I can understand that they want to get back to the right lane asap as they are not allowed to be on another lane and I will slow down to allow them to do that. I also flash my light as soon as they can safely re-enter.
BUT After having passed you threateningly at maybe 25 cm, some will move back right when they are still beside you, so that I sometimes hade to brake violently and swing to the right.
This happened, my last trip when I came back from paragliding in the Alps, maybe every 100 kms to me !
And, I do not have cruise control on my old van, but I also would like to drive relaxed ... as if I had cruise control.
In Belgium the minimum speed on the motorway is 70 km/h - so I am OK and I want to keep my beloved van as long as possible ... and I'm not in a hurry.
I understand the truck drivers but, if they get aggressive, I think about filming them with my mobile and I am investigating if I can complain at the police. But it is illegal to use your mobile when you drive and in my case also dangerous as you have to remain vigilant !
This problem is keeping me from visiting countries like Poland, Romania etc ...
But anyway if I understand it correctly it is rare that trucks are restricted to the left lane in the UK. (please reconfirm).
So when I can no overcome my aversion for the ferries (why for heaven's sake didn't Francois and Maggy go for an underwater motorway ??), the expensive fuel and campings, I may finally be able to fly ... the Penny Ghent or so.
Because one thing is sure : nowhere is the landscape so beautiful as in the UK.
Thks once more
Roger