Like some of the others mentioned, get a STS system. It may seem expensive at $40, but you will never have to worry about replacing string silencers again, also it does a much better job at removing noise and vibration from a bow than any string silencer I have tried, not to mention the added bonus of tighter groups (not a myth, but the truth). I just put one on my Allegiance and I am in love and wonder why I didn't get one sooner. I was able to remove the factory vibra-blocks and string silencers, which helped me pick up some speed. I put on a 4" Stealth stabilizer and Limb Saver Ultras along with the STS system and I have a bow that chrono'd a 393 grain arrow at 311 f.p.s. that is whisper quiet and dead in the hand. It doesn't get any better than that!