By the way, as a tip or advice, whenever you finalize the spoiler, ensure one thing to the best of your abilities....Check the spoiler top surface in daylight form your eye level. If you see too much waves in it's surface, ask for another one or a better quality one, if the waves are much lesser to be called negligible, grab it. The slight waves can be overcome with good quality primer and paint job. Otherwise once finally painted and attached, you will see many waves in the spoiler surface and it WILL spoil your mood.
