Well looks like I've ordered the wrong bloody pads for the front. Opened the box and found that all four pads have the spring for inserting into a piston when I was expecting two pads to have a flat back and two to have the spring.
They were euro car parts part no 101441168, Pagid part No T1350. Seem to be the same size as the GTI ones just with a different backing. Are these for the R32 or on the offchance they've cocked up and had too many spring backed pads in the box?