So I am on a few waitlists. I have been told I am in the top 10 of a wailist for a school that admits 5-6 off the list a year. The dean of admissions has said students on the waitlist can submit an additional LOR and an update letter. Unfortunately, I just started as a research assistant in March, and don't feel comfortable already asking for a LOR. Am I at a severe competitive disadvantage with the others at the top of this waitlist, assuming that many/most get an additional LOR? If so, should I just say eff it and ask the doc for one?