My experience tells me this:
Stock string shot great and bow tuned for about 300 shots with being tuned once after 50 shots, and 150 shots. Shot the bow for the last 3 months and could see arrow kicking out between 10 to 20 yards. I decided to tune the bow about a month ago. Could not get it to tune. I had a stripped screw in my Trophy Ridge Drop Zone and wrote the company and got a new rest from their incredible warranty team about two weeks ago. Still could not get the bow to tune with new rest. I never really got the left tear out originally, but I got close with my center shot just under 5/8. The more the string and cable stretched the bigger the left tear. I tried yoke tuning and everything else under the sun.
Today I put a WC string and cable on my bow. My pro shop likes to tune bows with fletched arrows at 3' from the paper. I got home after shooting 80 shots at the range at the pro shop and shot the bow some more. I started to paper tune the bow at 8' and guess what? I had a RIGHT tear....a right tear!!! I had to move my rest out to 11/16. This is a first. I got field tips, unfletched and broadheads making a bullet hole. I dont think that I should have had to pay for an $85 string and cable to do this after four short months of shooting a brand new bow, but I did. I have only shot the new string about 140 or so times today, but I am thinking that I am moving in the "right" direction. I wish I had only done this sooner. Bow season here in NE Florida starts in two weeks. I am not saying that a new string is necessary on every SB that has a left tear but it fixed mine. I had a lot of serving wear and tear and stretch. I hope that this solves some issues for some of you as it did for me.
Thanks to Ft. Caroline Archery in Jacksonville, FL for stocking the WC string and cables (and at a great price over their competitors) and to Chris in particular who puts up with my nitpicking and question after question after nitpicking.
I hope that after 1000 shots I will have the same tear through paper as I do now. I never had this tear with the stock string and I hope that Matt hears about this and makes a better string and cable set for his incredible bow. I shot one of my own arrows at 50 yards today for the first time ever with a total of a 2" group at 50 yards. The thing is that I shoot expensive arrows and kick myself in the butt for it seeing how I am now down to nine arrows. Two others were lost during attempting to bare shaft tune. I have a swamp behind my house that eats arrows that arent stopped by the target. Anyone local have a metal detector?