I just got done using metro trunk seal. Has a HOLLOW core. No resistance when closing and still leaks a tadd. I`m going to try softseal which is solid and should have more resisitance. Will now have to go to the trouble of removing ,cleaning the trough and replacing. Suggest 2 people to replace since you want the glue on both surfaces. You don`t want the glued seal to touch the paint.
John