I'm completely new to the crossbow genre. My dad just bought a new crossbow. Its a PSE viper. It seems a little loud to me. Being an avid compound bow user, and being a firm believer in the limb saver technology on my compound bow, I was wondering if you could actually even put them on a crossbow or not. If so is it a special limb saver for only a crossbow or just a regular one for a non split limb bow? Can you put the string leeches on it too without compromising the speed as well? Thanks to all for any help. Good luck this season.

In a word, no. I shoot Excals, have had some of the stick on limb type, cost a lot of fps, and they don't work that well and eventually come off. The string toys you put between the strands don't last more than a few shots and don't make much diff to begin w/ The life expectancy exception is served cat whisker which I get on my Boo strings.

Imho, the cheapest and best xbow silencers are heavier arrows. The rule of thumb is 1 fps for every 5 gr change in weight. Say you drop 20 fps w/ limb and string fluff. You could go up in arrow weight almost 100 gr, have better k.e. and nothing to go south on you.

Just my opinion.

I use Limbsavers on my Excal and find that they do indeed dampen the noise. I put one on each side of the rail near the end and one on the inside of each limb near the end where they just touch the string. On a compound crossbow I don't know about placing them on the inside of the limbs.
You will NEVER get a crossbow very quiet.

xbowbarry

Yes they will reduce vibration there a bit, but they reduce limb speed thereby arrow speed - around 15 fps by my experience - as a result.