That's one of the biggest drawbacks with a Mathews bow, they never made it easy to adjust their drawlength like most other bows. I know on my Q2 the drawlength was supposed to be 27" but the actual is 27 3/4". The sorry thing about it is almost most Mathews have a tendacy to be a little long in draw. I would suggest you find the actual length before you try to make any adjustments, you might find out you may just have to get a new module
Polack