yeah Richard at CLC is a top bloke. really pleased with the updates and comms. sent him my pics for his gallery.
if you look at my gallery and find this picture:
WP_20170310_12_15_25_Rich
you will see there is a slight bow in the skirt just by the front jacking point.
this is because its fibreglass and I think the OEM ones are plastic and a bit more bendy so stick easier
because of the angle of the skirt you need the small spacer to push the bottom of the skirt up and out so the top part of the skirt bonds to the outer sill below the door line
if you look at the OEM instruction that were uploaded in the side skirt thread then you can see there is a small spacer in there too. about 30-40mm long and a cylindrical shape with hole in middle for the bolt.
here is the side skirt thread:
http://www.seatcupra.net/forums/showthread.php?t=435280&page=5
Oem skirt install instructions for St variant -
//cloud.tapatalk.com/s/58b7f312...2101503073.pdf
hope that helps. I missed the pic of that as it was already on by the time I got back!