[joe231]

a trick i've heard of to "break in" the weather striping is to remove the door strikes, hook a ratchet strap from door to door and put tension on the doors pulling against weather striping. let it set for several days, check the tension daily and ratchet the strap up a couple clicks to keep the doors under tension......
it is also a good idea to remove the strikes when adjusting the door alignment, for two reasons, one it saves the headache of a jammed door and it allows you to get the door alignment right with out the strikes interfering