Auto clutch setting= Off As i know, paddle/sequential type car only have to input clutch when standing start (1st gear/reverse gear), other gear (2nd-6th) you no need to input clutch, but why the gear got damage? Auto clutch setting=On I drive very high speed (6th gear) and i down shift very quickly from 6th to reverse gear(i repeat do it many time), is totally weird there are no damage.
you will get damage to the gearbox when mechanical damage is turned on, if its turned off, you will not receive any mechanical damage.
Auto clutch setting= Off I mean when i shifting paddle/sequential type gearbox 2nd, 3rd, 4th, 5th and 6th gear without input clutch, but i ends up with the gear damage. The gear box should not get damage even the mechanical damage is turned on.