My CSC has the Ground Effects Package (I call them running boards) and the rear fender bra. The bra cannot be removed as it's pinched tightly between the fender and the Ground Effects Package (GEP) My idea is to cut the bra to conform to the edge of the GEP and mount the GEP directly the rear fender as it would normally be if there were no bra. Should I put something in between to protect the two surfaces. The mounting instructions from CSC doesn't show anything but it just seems like the right thing to do.