I have a 2010 R3T, closing the hard bags has always been a problem, just poor design coupled with poor workmanship, I think. Rubber seal has started coming unglued a couple times on one side and been reglued, the other side the seal came completely off recently and is laying in the bottom of the bag waiting to be reglued with some weatherstrip cement I picked up at the auto store. Slamming it is not the way to go, FWIW, seems to bounce, I've found closing it, then giving a firm push seems to work most of the time.