I took my application to the post office for secure next day delivery, having checked it thoroughly myself. I was offered a check at little more cost than the postage, so I accepted. The coutersignee of my photograph hadn't included title so this was rectified at the counter. My new passport was returned by courier within the week, and my old one came back in the regular post a few days later. I guess the precheck speeds up the process at the passport office. I would definitely recommend the service.
