FWIW (ignore username I'm a mid) on my I-Day they barely collected any of the PTR paperwork. Plenty of people showed up missing more than half of it and nobody ever noticed. PTR letter, medical stuff, and SF-86 are essential (although they eventually returned the SF-86 and then made you manually re-enter all of it on a computer after plebe summer, so you could even get away with not having this form) but I just threw away 2/3 of the papers from I-Day cleaning out my plebe room because nobody ever collected any of it or they just made me fill it out again over the course of I-Day. Don't take this as me telling you not to do the paperwork, but it's not the end of the world if it's not filled out to perfect government specifications because if it's actually important, they'll make you do it again, and if it's not important, it might not even get collected.