I would like to ask my research advisor for an LoR, but only after I've spent some more quality time in lab this summer. So if I get a letter from her by mid-Aug or late-Aug (which, ideally, would be way after my secondaries have already been submitted), would that be worth anything? I only have academic professors' LoR's right now, the bare minimum for some schools, and I thought it would be nice to help someone else write me an LoR, but at this very moment, I don't think she could write me the best LoR, which makes me want to wait before asking her for one. But if it's not gonna help me any in the process, I wouldn't worry about it... Anyone know? Also, does it add a LOT to my app if I ask someone from the hospital I volunteered at to write me a LoR? My only problem is, in all honesty, I didn't have much interaction with the MD's. I was in the ER and they were so busy that literally, there weren't enough of them. So my interaction mostly came from nurse technicians and some RN's. Would it help me to get a LoR from them if they could just write about how helpful and committed I was or something?