Well, I got a set of strings to demo about 2 1/2 weeks ago for my '05 Shark. First thing I noticed that the serving was done on end servings and center servings was done about as tight and clean as one could do. Secondly I installed on bow and looked for any seperation. Found none.... Did have a little creep. but after a few shots. I stopped. not much creep though. Set up with a super peep and loop. tested at same weight and draw that I had my Vapor tail Strings on. I was getting 282fps at 62 lbs, 28" draw and 340grn arrow with Vapor Trails. With JcMorgans strings I shot 3 times through the Easton Mapper chrono. average was 287fps with Jc's Strings. After 2 weeks of shooting about a round of 300 5 spot every day. Shot over 700 total shots including weekends. Got no twist or seperation. Pulled trings off and manually went through each serving for any seperation or breaks in the strings. Found nothing. I will continue to use these strings. Also to mention we measured strings after the shooting to find no stretch at all. If your in the market for some quality strings. give Jc a chance. You wont regret it. I got mine in flow green of course. also color is alot better and brighter than most larg manufacturers that I've ordered from.... Thanks again JcMorgan for letting me demo these. I think you are doing an excellent job!!!!