NJIT Grading System discrepancy

NJIT works on a A,B+,B,C+,C,D,F system, with no minus at all or A+. I kinda wish the letter grade options had more malleability to choose exactly the kind of letter grades rather than making it hell to use the sliders/manual numbers page (keeps overriding your number choices), and then have no option to remove the -. Overall good app though