Originally Posted by
chris ss
I had a similar problem when I wrapped the cable wrong at the anchor bolt at the derailleur.
Yes, that would definitely do it. It shortens the length of the lever arm, and so changes the cable response ratio.
Note, since cables are normally bolted on the far side of the arm, bolting on the near side, shortens the arm, and increases the span causing over travel. OTOH, if you have under travel when bolting correctly, you can light a candle and try your luck bolting to the near side.