I've heard of people taping cardboard to the trunk lid where the weatherstripping hits it. When the lid is closed, it will over compress the seal. After a few days, the cardboard is removed and the trunk should shut much better.
My car was blocked with the weatherstripping inplace. Unfortunatly, the weatherstripping was the same as the pictures above...incorrect for 73. Once I find the correct one(If I can find the correct one) I may have to use the cardboard trick.