Put the STS System on my New Ross bow the day before our local 3D shoot. Was a little worried about how it might affect my accuracy as I had heard it made the bow shot 2 inches right or left. I shot a 448/500 in the rain and saw no change in my shot placement but a big difference in the noise. I had peep and string noise prior and none after i put the STS on. Already loved the bow, now its whisper quiet.