I like the look of the fur silencers but with the way you have to install them it's time consuming to move them around on the string to different locations, you just can't slide them up and down the string so it's a little work to find the "sweet spot". On my McCullough Fiftyniner they work the the best starting 11" from the end of the string, wrapped in the same direction of the twist of the string, towards the center serving. I untwist the string some, wrap them on, then twist the string back to brace to tighten them up.