Like I sort of stated above, The STS didn't really seem to do too much for quieting down my Old Glory, which by the way is plenty quiet already. But the area where I saw the major difference was accuracy. It really tightened up my groups. Tell me if I'm crazy or not but it seems that Mathews bows seems to be the ones the STS has problems helping. Not a bash just an observation. The STS is in no way the cure all for all of your bow and tuning problems but in my case it seems to have helped tremendously.