All the effort to make the headliner panels easily removable was, after a summer in the sun, less than successful. The picture above tells all. The laminate backing began to curl along any edges not well secured. Fortunately, this shortcoming was easily corrected with 1 inch wide by ¼ inch thick Walnut battens screwed into the plywood furring strips that run under every seam. You can see these battens aft in the picture above. The picture below shows the finished headliner aiming forward from under the open hatch. Each batten is secured with just two to four 7/8 inch screws so the panels can still be easily removed allowing access to the bolts securing deck hardware.