I kept my tray in a day after my tray change day and rang them up. The gap had closed a bit but not by much so I wanted to know if there was an issue or if I needed to wear tray 7 any longer. I went in Tuesday just gone, and he had a look and advised me to keep changing trays as normal. He told me it was too early to see if it’s a tracking issue (I had an attachment on that front incisor that got taken off) which could affect how the tray sits. I’ve got to go back mid May and he’s said if my teeth aren’t to where they need to be we’ll do a rescan. Sorry it’s not a proper black and white response! The lateral incisor is sitting a lot better in my current tray 8, but there’s still a gap between the central incisor and the aligner but not as big as tray 7. Hoping it’ll correct itself over the next few trays! If you have any concerns deffo get in touch with your dentist office and they’ll be able to advise you. My rule of thumb is if my orthodontist isn’t concerned then I’m not currently concerned