dimpled the coverplates F-824B for #6 screws....I first drilled with #28 drill bit. .Not sure i used the right dimple die (cross checked with the other cover plates used in elevator and the hole seems bigger). have a check with Lucio. One thing i dont understand is that the screw to be used is a #8 (later in the fairing section 12-6) with different final drill #36 ....