OK, if I get this right the general impression is that spacers are a no, no!
Just got off the phone with Eibach and they are bemused by my scrubbing problem. They have told me they have sold over 80 of the specific sportline springs (last year) with not a single customer coming back enquiring about the scrubbing noise.
RedRobin/Bacillus: I take it you have your cars lowered by a fair margin. Do you get the occasional scrubbing/thud when driving enthusiastically?