Cougar 3 Nitrous x, B cam. I have a vibration and noise at the end of the power stroke.After two shoot my locknut on the sight is loose. (sureloc Chall.. ).New string and cables ,and cams perfectly time on the draw. 52 draw weight and 295gr arrow,29.5 lenght.Somebody have a picture or a link i can see the perfect cam rotation.There is no Martin dealer here.I'll appreciateif you can help me.Thanks