I have a 2017 withOM quick shifter. While down-shifts with the auto-blipper are perfect, indeed the additional stability when down-shifting withoutworking the clutch and throttle while hard on the brakes isoutstanding, up-shifts are often clunky and accompanied by a slightlurch. Very occasionally up-shifts are ?knife through butter?smoothbut I am not aware of doing anything different on those occasions. Ionly use the QS when on track and shift at between 12-13K . I havebeen through the QS calibration process and have tried with both 40mmand 50mm of chain slack but cannot get consistently smooth up-shifts.The clunking worries me. Is there a favoured technique or some?trick? I am missing? Thanks.