Well I was putting on a new set of strings on the Helix. Not sure what happened. I had been checking and adjusting the cam timing. I hooked up the scale to the D loop and the other end was to the draw board. Just like I had a hundred times or more. Went to crank it and BLAM. The scale had a to say the least, catastrophic failure. Just as the cams were rolling over, it exploded. Pieces all over the garage. The only thing I can figure is it got twisted or bound up. Anyway, I never really liked it. I ordered a better one. Then I saw that a piece of it took out my QAD Ultra rest. The launcher was gone, broken off and the shaft was bent. Now I will have to keep my eye open for one in the classifieds. I have one I can use but it has a slight issue so I won't use it for hunting. I sometimes have to cock it twice before it stays up.