http://uk-mkivs.net/topic/14418-anniversary-shocks-kw-40mm-springs/ that is the thread, this is the bit to pay attention to .....
My theory behind all this was that the sports springs ( standard pd150 springs ) that were fitted to standard shocks were 20mm lower than standard springs so the 40mm lowering springs took the standard shocks out of there workable length.. but with the anniversary springs being 30mm lower than standard i took the chance of the 40mm KW springs working with the anniversary shocks which i found from the dealer were 10mm shoirter than standard shocks so in effect it would be like lowering a standard anniversary by 10mm which should still stay within tollerence of the working zone of the anni shocks.. ( if you understand and follow all that i will be surprised!! )
so judging by that my understanding is the standard golf 1.6 ect shares the same shocks as a gti. Right ? But the Gti is 20mm lower than your normal golf which is fine as the suspension is still within its limits! Then adding 40mm lowering springs to the equation will push the standard shocks a further 20mm out of there 'comfort zone' creating an aweful ride! No good .....
Now take the anni shocks they are coupled with 30mm factory springs and are fine this person added another 10mm drop with kw springs and they were fine. Now judging by the standard shock with gti springs numbers I can fit 50mm lowering springs to the anniversary shocks which will reduce travel by 20mm the exact same as what Gti springs do to standard shocks !
If you managed to make sense of that I am surprised lol but any input would be absolutely brilliant !!!