I've done a couple of Boxster tops a few year back. I don't remember the wrinkles in the same area as your. My top(s) were very tight and hard to close. The sun helped loosen thing, which won't necessarily help you but will not cause wrinkles to worsen.
There's not to mess up on installing the tops so I'm not sure home much a redo will help. I do remember messing with the plates above the side windows but not really having to tug or much to get a snug fit.
|