Strict cutoffs are followed by only A and C again with exceptions made especially for work ex folks...
For A the cutoff was >95% in all sections and >99% overall
There were few exceptions allowed which were not exactly explainable... But everyone who got the above got an A call for sure...
For C the cutoff was >90% in all sections and >99.1 (not sure if it was 99 or 99.1) For C there were the least exceptions and no one with any section less than 90 got a call...
L had lower sectional cutoffs and went lower than 99% overall too... not sure about exact number... also L is uniform about calls with not too many exceptions..
K gave almost everyone with 99% overall a call... People with one section lower than 80% too got the K call...
B was classic mixed and completely unpredictable...
No idea about I...
K