New registrations are placed in the hot photos queue automatically. So if you want to do this again in the future I suggest searching for the registration in the database to see if it's new or not. If it is, you could upload it as a completely different registration. (I've uploaded Cessnas as 737s before.) This would allow you to check the photo for any flaws before deleting it without the fear of it quickly entering screening. Just make sure to delete the photo from the queue when you're done. If it is deleted promptly it is not a problem, but if it makes it all the way to the top of the queue you're going to receive an embarrassing screening results email.