Make sure that your brace height is off too. Make sure you are measuring from the middle of the axles when doing the measurement. If both the A to A is too short and the brace height is too long, then you need to untwist the string/cable. To keep the timing mark approx the same, do twice as many untwists to the string as what is done to the cable. That should keep the timing roughly the same.
I know my Liberty is a little off on the A to A (I think it's somewhere around 1/8th an inch), but the brace height is right on. The specs can vary some depending upon the bow. That's why I would recommend checking your brace before making any changes.
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