There’s 2 forms the give you at the interview. One is the printed app (same format as if you printed your app PDF), another is a summary that only they have access to. My printed app that they handed me to correct was at least 3 months old, which I know because I completely overhauled my app and fixed some things 3 months before my invite and the changes I made weren’t on there (just verbiage changes, auditing hours, spelling errors, etc) The summary sheet had all these changes and up-to-date hours. So I’d assume the app is printed when they look at it, but they also print a summary snapshot when they send you an invite, and they want both corrected/updated in red pen when you get there for your interview. Like a previous poster said, hours off by <100hrs need no correction.