Has everyone now received their Roofs?
For anyone doing this - use the 50mm wide tape to run around the edge of the roof line - this will make sure when you cut, the cut line is behind the inner monocoque bracing and you don't see any cut from inside. The back roof edge is also sealed with a grey sealant, which smokes like buggery, but just go slow and don't go to mad with the disc, otherwise you will cut through both skins (rear is skinned quite close to each other).
No more skylight in the roof to worry about ! Cheers Raj well chuffed !