yes an accudraw can be mounted on an Excalibur,, Iam not sure how often you have to replace the string but from what I have read it sounds like they wear them out faster than what your Hunter will,, I have the TenPoint Proelite , and now an Excalibur Phoenix,, I know whick one I like shooting the best, I am going to replace the accudraw on my ProElite and have an Accudraw 50 put on it , could give you a good deal on the Accudraw if your interested,, and Dan Miller could mount it on an ExCalibur if you decide to get one this one even has the camo covers on it..