don't mean to beat you up but sorry to hear you found out the hard way that Most Mathews draw lengths are not adjustable this is yet another reason I don't buy mathews. I have a short draw so trying to sell one would be a hasle & would never get much for it unless I wanted to wait till it sold. I do not know much about Mathews cams so I cant help all that much
I would contact mathews. They are going to give you the correct answer on this. I don't know how many people shoot mathews on here other then Spiker you could PM him & ask also he is pretty knowadgable when it comes to different bows
Good Luck & hope you get it going in time for your hunting season
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