Unfortunately, I have to have the style that sits flat on the deck lid... it originally had a Xenon spoiler on it, and it sat flat. To install it, they roughed up the paint and put the "glue" under there, as well as they drilled the holes in the four corners for the screws. So now it looks like hell, with patches of this black glue, scuffed paint and some spots where it looks like razor nicks in the paint where I suppose a razor was used to remove the glue. That is, assuming that the install had to be repaired once when it started coming off some other time.
Anyway, I would definately rather have on of the spoilers that sits on "legs" and is up off the lid. I'm going to the salvage yard, and I have some requests in the Wanted forums to try to find a used deck lid the same color as mine.