[8D]I have used the string leach since they first came out, the mdesign and material has been much improved this year, I use to tie them but found out that was causing them to break way before they should, now I can get 3000 to 5000 shots at over 300 fps on my Bowtech and have been very pleased with them. You need to position them so that they aren' t slapping into any other cables and it is much easier if you use a press to put them in the bow string that way you can see the position it will be in when you let off the press you may to move it, they won' t move in the string once you have it out of the press the strings own pressure will hold it in place.