Kmarei,
I understand the argument of wanting to counter act the rear end lift.
but...
What speed limit in europe?... the accidents you speak of were driver error not directly attributed to rear end lift?
Last time I checked, if you go around 90 mph in the US, you are asking for trouble but not from a retracted spoiler.
Hey, does anyone have statistics on what speed that you should be concerned when rear end lift occurs? If it is 100+/- then I guess I don't have to worry to much.