For a decent amount of schools, I put in my gap year plans that I accepted a job as a full time research assistant which I figured was significant since I didnt have research before (besides a failed review paper for 20 hours which I didnt put in AMCAS). Would it be significant to update them with a brief rundown of the project that Im working on? Also I have been at my job for 3 weeks and was talking to one of the other workers and she said I should talk to my PI about getting a LOR. Would it be too late to send that as an update too? He is really well known in the radiology field and has his name on 300+ pubs and has me working full time on a national clinical trial (approx 2000 hours of research by matriculation next august). He isnt here much because he travels a lot for conferences but he started the imaging center at my school and got the most funding for single researcher at my schools history. Would any of this be worth updating?