I've just broken mine again ... both of them ... so that is 5 in total so far. Do I hold the record I wonder??
Have you found out what happens with these double screw versions if you forget to release the Tenax fasteners prior to working the roof mechanism?
Hopefully they will take the strain but I'm wondering if they will rip out of the bodywork causing even more damage than the originals or, equally as bad, rip the hood fabric?