The Diamond Razors Edge has a rotating mod built on the cam. It's just a simple take out a couple screws and rotate it to the longest setting (29" is as long as it will go) then reinstall the screws and tighten them down.
You might be better off taking it to a dealer if you are not comfortable working on bows.
Enjoy the Bow!
Prayers will be sent for AJ!
Dan
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Maker of the MeanV String Suppressor
Slick Trick, Limb Driver, BowJax, Spot Hogg, Hoyt, PSE, Diamond, HHA Dealer
MAITLAND BOW DEALER
www.meanvarchery.com