Serving speeration around the cam is pretty common with factory strings after an initial break in period.

Chances are that your string and/or cables have stretched and while your bow may shoot fine, it is not at the optimal specs.
My understanding is that the stock bowtech strings are pretty well made (they might actually be Vapor Trail).
Go to your local pro shop and get them to check the bow tuning for you and make sure your bow is still shooting within spec (ATA, draw weight and letoff).
Most likely all that needs to be done is to twist up the string amd/or cables some to get the bow back into spec. From then on, your cables should be pretty stable.

One technique for keeping tabs on your tuning is to use a pencil and draw a line across the cams, along the limb, both above and below the limb. Every now and then, check that the mark is still in the same place. If it moves, you know that the string or cables are moving and it is time to check them again.