I would suggest not sending them in until you send in your secondary, and then send them in all at once. Sending it in early might just prove to help them get lost. Besides, they won't look at them until your secondary is there, anyway.
Also, you might want to look into haveing a service send them out for you. Tis way the service gets the originals and will send them to whoever you say. Could save you a decent amount of time.