These options are confusing, and help text doesn't help either:
1: (.) Assume match if date and size match - When selected, the two files are assumed to be the same if the date and size are the same. This will significantly speed multi-file diffs.
2: [ ] Assume mismatch if date different and size matches - Defines how to handle the case when the size is the same but the date differs.
If 1 is selected, and 2 is not checked:
a: Size mismatch: Slick will always compare files, no matter how these boxes are checked.
b: Size match & Date match: Slick will not compare the files?
c: Size match & Date mismatch: Will slick compare the files or not?
How does (c) change if the 2nd checkbox is also checked?