Thanks for sorting out the link Maurice.
It is interesting that Devek are involved as there is another 6 page thread, I spend far to much time on Rennlist, about an install using dampers and instructions from this company where the poor guys car looks no lower, however everybody who has bought from Carnewal have been able to get their cars to a height they want.
Just hope I do not encounter any problems, but as Porkapig has just had the Bilsteins fitted without the extra thread and is delighted and I have written confirmation from Gert about what heights you can go down to, am feeling confident about the end result.
Will post pictures of the before and after install when it is done.