Well, the String Leech' s are the best silencers out there for your string, atleast, in my opinion. They get such a bad wrap for nothing. I had the same pair on my 2002 Hoyt MT Sport, shooting 244 f.p.s., for SEVERAL THOUSAND SHOTS. Yes, thousands. There durability is VARY underestimated. One thing is that I didn' t serve mine into the string. They lastest ALONG time. Their results are amazing at worst. These things work so well that I don' t know if anything better will ever come along. Also, these were the first leech' s that I was using, not the new ones, which are made to be much more durable. Try them, you won' t be disappointed, plus, they don' t slow your bow down as much as most other string silencers.