Sims String Leech:

Construction: NAVCOM shock absorbent material

Weight: 1.5 grams
Silencers Per Package: 4 (2 sets)
Cost: $8.99 (BassPro Shops)

Overview:
Sims first hit the archery industry by storm with their revolutionary Limbsavers. The String Leech is a string silencer made from the same rubber like material known as NAVCOM. They slide between the strands of your bowstring so you may or may not need a bow press to install them.

Rating system: 1 = poor, 10 = best.

Durablilty: 2 - Sting Leeches really have a short life span. I have noticed will only last between 200-500 shots depending on the bow. This isn't a long life for a product that costs about 8 times more than Catwhiskers.

Quality: 8 - Overall quality is good with a few minor flaws in each leech. The reason for this appears to be caused by them being made in molds or casts and air bubbles sometimes cause imperfections. These really do not take away from the products affectiveness.

Noise Reduction: 10 - I have used these on a few bows now and they really do reduce string noise. They are the best string silencer I have seen as far as reducing string virbation and noise. The product does a great job without lowing arrow speed. you might get a 1 or 2 feet per second reduction. Some bows may be a little more so this is based on my bows that I use them on.

Price: 5 - I really think they are a bit overpriced for the short life of the product. They do work good as far as what they do so you have to decide if the short life is worth it.

Total Score: 6.25

Final Comment: The string leech is a good noise reducer but like I stated it has a short life. Out of a package you get 4 and maybe a 1000 shots. If you shoot a lot of arrows each week I don't think they are worth changing all the time. I use them only during hunting season and then I leave them off when I shoot in the spring and summer.

I wish Sims could make them more durable and lower the cost. I really think the price is a bit much for what they are. Overall I will continue to use them for now but I get tired of putting my bow in a press to replace them when they break. I have not made up my mind as to how long I will continue to use them. Catwhiskers always did a good job and last forever and the price is right.