I use the string jacks and like them a lot. More than leeches. When my my limbsaver limb dampeners wear out I am definitley going to try the limb jacks. Barrie Archery (Rocky Mounting Broadheads) are making some too that look interesting called the Hemi (http://www.rockymtbroadheads.com/05hemi.html)
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"It takes a big man to cry, but it takes an even bigger man to laugh at that man." - Jack Handey
I have not used them myself but a friend of mine picked up a set for his bow. They seemed to work very well at reducing string noise. We did not check for any speed reduction at the time.
Bowjax
