Bow string question
 

I bought a package bow, Cabelas Regulator back at end of March 2015. I want to replace the string and cables because the string has been a pain in the ass. I have had it since march 28th. I had 200 shots thru it when I had the first peep adjustment done. Ever since I have had it adjusted 5 more times and It still is rotating. The serving is coming undone all over it. My question is what is the difference between the string (octane) in the package bow setup and a replacement factory string ( not Custom)?

Thanks

There would be no difference between the package bowstring and the factory replacement bow string