Some further thoughts on this as 'comfort' is very much a personal thing.
The non ZSP/Eibach combo is actually the worst for overall performance so overall comfort might be judged as poor also. For reference, the ZSP shocks are only just in control of this spring and struggle particularly with rebound.
FSD/Eibach is nice for moderate driving on reasonably surfaced roads, particularly compliant on the compression side of things. I found this combo poorly controlled and floaty at speed. Rebound damping quite weak too.
No experience of the Billy coils but as they are a matched setup, maybe an acceptable level of comfort at moderate settings?
Originally Posted by markiE90
Thanks for the reply Yves. I appreciate it.