about two weeks ago i got five new bows in a trade deal from a fella on tradgand and one of them was the thunderstick mag 56" 51# @28" and it has quickly become my favorit out of nine trad bows.All i can say is the military developed this technology for fighter pilot helmets but theirs cost about 1,000,000 bucks a pop. Where ever i look is where it goes my friend i love it, no stacking and smooth. Very quite also if you keep the brace heigth at the recomended 6.75-7.0 its a slammin machine