rickshobbies

I noticed that on the spoilerdepot spoiler, there is no mounting hole for the center support like there is on some of the other OEM style spoilers. I know that some of you have installed this spoiler on your car. Is there supposed to be a bolt for the center or is it not necessary? What does the factory spoiler have for the center post? It just seems odd to not bolt this down, unless the two sides flex a little and press down on the post when it's installed.

Anyone know?