i sanded all of mine down! its a real pain in the neck and took me a long time as I did it by hand with wet n dry paper... far better though than building up layers of primer and laquer to smooth.. just have to be patient and accept the repetitive strain injurys the a couple of days after! lol..
arnt the RS ones colour coded anyway so unless you have a bizzo colour just buy from renault prob work out abit less than buyin trims n then gettin them sprayed