Yup-

I had the mach 5X, which was very similar to the 6. Those stock PSE cables and strings (450 premium) back then were primitive by todays standards-They creep like crazy and serving sepration was a big problem with the Maxis cams. And time will def affect them whether shot or not. A new string /cables will make a world of difference in many areas-especially the cams remaining in time & synch, and thus the bow remaining accurate day in and day out for you.