jasper10101010 -
Hmmmmm. Maybe it is harder to remove the spoiler. The 3rd-gen SC's have a more integrated spoiler than the 2nd-gen.
Here are some "duck spoilers" or "duck bill wings" :
The idea is that the spoiler angles up to meet the slope of the overlay.
Your existsing spoiler could become the mounting point for a home-made duck bill, or "whatever" meets the slope. If I had your car, these are spoilers I would be considering :
But don't take my word for it. Let others chime in.
CarloSW2