Olink

I just tie mine around the string and pull the knot very tight. They will generally stay in place and you can slide them around to find the sweet spot. As far as length goes, ONE INCH is all you need (has anyone else ever used that line?). Seriously though, if you trim the whiskers to one inch on either side they barely slow the bow down and do a wonderful job of quieting string noise. The great part is that they are cheap and will last as long as your string. Oh yes, one little trick for putting on the whiskers. After you put them on but before you cut them, measure and draw a line across the whisker with a marker at one inch. Now pull (stretch) the whisker and cut where your marker line is with a scissors. This will help to separate the whiskers and it will snap back to the one inch length.

Jerry/NJ

I gave up on the leeches ever since the one hit my eye and back to the cats. I serve mine on and cut to golf ball size and they work just fine. I was shooting my 04 Pat VFT the other evening and my son could not get over how quiet it is.

thenuge15

I put catwiskers on my new outback but took them off. The string dampeners already took away most of the noise. I called mathews and they said that the extra weight will not only cause loss of speed but more oscilation of the string. I took mine off and notice no difference. It is still very very quiet and I don't even have limbsavers or a stabilizer yet.