I too was thinking about the 034 for my CS as I had one on my previous GTI and it cured a notchy 2nd gear but it also felt much more positive with the 034 and to be honest as scanesare stated the CS feels more solid (less loose) than the standard GTI, which made me think the CS has upgraded engine mounts / dogbone. Surely the more positive feeling of the CS cannot just be as a result of upgraded springs!! Good to hear it made a difference to your CS RALEIGH.
RWLEIGH, is yours a manual or DSG?