I removed my front wings in order inspect the joint area, i was amazed at the method of fixing to the body however at 5 years old it was in good shape and i re-attached them using a waxoyl based underseal in the joint area. Whilst i was at it i removed those stupid tread rubbers, fortunatly, before they'd damaged the paint and caused any corrosion.
I think the rear wings will get the same treatment next winter.