Are the rear boot lid struts on the 986 meant to be a bit soft. I was thinking that my rear lid needed to be a bit less soft when opening and closing so I ordered a couple of struts and when I changed them it made very little difference to the way the lid feels. The front lid has some strong struts and I was looking for something like that for the back, that's why I changed them, but they still feel a bit spongy, and I have to push the lid more than 3/4 of the way up,for it to continue to open by itself. Is this normal?