All disparity:
hyphen - (45 0x2d) vs. backslash \ (92 0x5c)
The top 25 disparities between the original kerning and Autokern's kerning, in descending order.
Original
The original kerning from the input.
hyphen (0x2D) lsb: 36.0
hyphen (0x2D) rsb: 36.0
hyphen (0x2D) right x-extrema: 181.0
hyphen (0x2D) x-advance: 217
backslash (0x5C) lsb: 4.0
backslash (0x5C) rsb: 4.0
hyphen (0x5C) right x-extrema: 383.0
Original kerning value: 0.000 em
Original kerned x-advance: 0.217 em
Original x-extrema offset: 0.040 em
Original in-ascender x-extrema offset: 0.070 em
Autokern
hyphen (0x2D) lsb: 16.0
hyphen (0x2D) rsb: 17.0
hyphen (0x2D) right x-extrema: 161.0
hyphen (0x2D) x-advance: 178
backslash (0x5C) lsb: -15.0
backslash (0x5C) rsb: -12.0
hyphen (0x5C) right x-extrema: 364.0
Autokern kerning value: -0.082 em
Autokern kerned x-advance: 0.096 em
Autokern x-extrema overlap: 0.080 em
Autokern in-ascender x-extrema overlap: 0.050 em