Okay, according to our data, the super rare items have an observed drop rate of 1% in 1* sectors, 2.5% in 2* sectors, 3.5% in 3* and 4* sectors, and 4.5% in 5* sectors. Overall, the drop rate is ~2.3%. This is ignoring other factors, such as ship stats. The total sample size for the data is 3,000 item retrievals, but the data clusters at the start, so the data for the later areas is less good.
Observed drop rates:
Code:
Schmtc / Spcl FC Craft Mat Unique Craf Mat Gen Craft Mat Materia Crystal Total
------------- ------------ --------------- ------------- ------- ------- -----
All 783 (26.6%) 741 (25.2%) 67 (2.3%) 212 (7.2%) 481 (16.3%) 659 (22.4%) 2943
----- ------------- ------------ --------------- ------------- ------- ------- -----
01-16 753 (26.9%) 693 (24.7%) 61 (2.2%) 200 (7.1%) 437 (15.6%) 659 (23.5%) 2803
17-22 30 (21.4%) 48 (34.3%) 6 (4.3%) 12 (8.6%) 44 (31.4%) 0 (0.0%) 140
----- ------------- ------------ --------------- ------------- ------- ------- -----
01-05 291 (24.8%) 312 (26.6%) 13 (1.1%) 75 (6.4%) 174 (14.8%) 308 (26.3%) 1173
06-08 201 (28.4%) 166 (23.5%) 18 (2.5%) 43 (6.1%) 112 (15.8%) 167 (23.6%) 707
09-11 156 (28.5%) 126 (23.0%) 19 (3.5%) 43 (7.8%) 82 (15.0%) 122 (22.3%) 548
12-14 73 (26.3%) 67 (24.1%) 10 (3.6%) 23 (8.3%) 52 (18.7%) 53 (19.1%) 278
15-16 32 (33.0%) 22 (22.7%) 1 (1.0%) 16 (16.5%) 17 (17.5%) 9 (9.3%) 97
17-22 30 (21.4%) 48 (34.3%) 6 (4.3%) 12 (8.6%) 44 (31.4%) 0 (0.0%) 140