Well my rear Hatch on my FD is developing some rust and I was thinking about getting a carbon fiber rear hatch. I have heard some horror stories about bad fitment and after mounting a spoiler the wind actually pulls it off. Any truth to either of these rumors?

 

I have a Seibon Carbon Fiber Hatch with a retarded huge RE-A GTII wing that is constantly under quite a bit of downforce as it regularly sees 130mph+ and have not had any issues with it.