James,they will quiet your bow but as to if it is worth it or not depends on if it is worth the amount of noise reduction vs speed reduction. You've shot a compound for years right? Have you ever put cat whiskers on? In my limited experience with noise reduction cat whiskers are the best if you serve them on. They seem to reduce more if they are served and they don't go whipping off as fast if they are served on. I have tried sims limb savers and a whole wack of string sliencers. One thing to tell you. I don't like the way those other string sliencers whip back into my face!