You can twist/untwist both the cable and the string to get the bow both timed and shooting to exact drawlength you prefer (assuming it's close to begin with). This can take a little tinkering with a bow press to get it precise. I wouldn't do this until you've shot 100 shots or more, to settle the string. If you move too far from the normal position, it will affect maximum poundage, because limb prestress is being altered. It can also sometimes make a bow a bit noiser. You are also limited as to how far you can twist or untwist a string, so a custom string may be necessary in some cases.

Try to order the drawlength that comes as close as possible to what you need. Remember, actual drawlength and what is on the bow tag, are generally two different numbers. A mistake here, can be very expensive with a Mathews. Use a measuring arrow to get your drawlength on your current bow, if it fits well.