I drilled the 9.52mm ( 3/8" ) holes for the Dzus fastener collars on the top cowl. I also drilled the 8mm holes for the Dzus fasteners and the 3.2mm holes for the retaining springs on the bottom cowl join. The cowls are nearly ready for painting, just a little more filling of scratches and rough areas. I covered the radiator support bracket bases which do not require painting.