Ok... a question of practicality: I have a rec from an upper-division micro/micro-phys teacher, my supervisor (well-respected researcher), a good dentist... this is all I used last year, but I was only applying to Texas schools and this is what they required. This year, I'm applying outa state, and in total, I'm going to have to ask for about 6 LORs to fill all the different school requirements. Would a letter from a freshman/sophomore calculus teacher carry much weight? He promissed to write an amazing letter, but stated that an amazing letter from a lower-level teacher from 6 yrs ago would hold much less water than even a mediocre letter from an upper division proff. Any suggestions would be greatly appreciated. I do have a couple other people I could ask, but none of them knew me as well as this guy did... Plz help!
-D