All disparity:
parenright ) (41 0x29) vs. underscore _ (95 0x5f)
The top 25 disparities between the original kerning and Autokern's kerning, in descending order.
Original
The original kerning from the input.
parenright (0x29) lsb: 20.0
parenright (0x29) rsb: 32.0
parenright (0x29) right x-extrema: 242.0
parenright (0x29) x-advance: 274
underscore (0x5F) lsb: 36.0
underscore (0x5F) rsb: 36.0
parenright (0x5F) right x-extrema: 555.0
Original kerning value: 0.000 em
Original kerned x-advance: 0.274 em
Original x-extrema offset: 0.068 em
Original in-ascender x-extrema overlap: None
Autokern
parenright (0x29) lsb: -1.0
parenright (0x29) rsb: 9.0
parenright (0x29) right x-extrema: 221.0
parenright (0x29) x-advance: 230
underscore (0x5F) lsb: 8.0
underscore (0x5F) rsb: 9.0
parenright (0x5F) right x-extrema: 527.0
Autokern kerning value: -0.066 em
Autokern kerned x-advance: 0.164 em
Autokern x-extrema overlap: 0.049 em
Autokern in-ascender x-extrema overlap: None