I have to say that I am not really impressed by the function of the adjustment. Hardly any difference noticeable between the settings. That is different with the XC700.
I have several XC700 in silver (round about 6) and 2 XC700 in RED.
One in VERY GOOD condition.
I disassembled it last weekend
For whom it may concern: I also own 3 purpurn XC400, some older ones ... XC150 etc. XC51, 2 blue XC500, 1 purpurn XC500, several XC600, several XCR, almost every spare part and original steering tubes.