Just to report back mine arrived in a very bashed up box (despite FRAGILE GLASS being printed on it, well done DHL ) this morning.
@Primey mine did come with a little bag containing the clips so keep on at ECP
@Jeff G @Greenmachine having test fitted I see what you mean with both the clearance but also the tension, they seem to be designed to give the bottom a slight "twist" of tension. I'm going to leave them clipped in on the drive and maybe do a gentle drive around home to see how I feel. I like the suggestion on another thread of trying to melt the pilot hole rather than drill.
@Primey mine did come with a little bag containing the clips so keep on at ECP
@Jeff G @Greenmachine having test fitted I see what you mean with both the clearance but also the tension, they seem to be designed to give the bottom a slight "twist" of tension. I'm going to leave them clipped in on the drive and maybe do a gentle drive around home to see how I feel. I like the suggestion on another thread of trying to melt the pilot hole rather than drill.