what dose this do?? "bowtech
i got a new bowtech tomkat and on the top cam they have that "thing" you can lossen it with an allen wrench and slide it up or down, i have heard it changes the letoff and the valley? is that true? i like the way it shoots but i wouldn't mind tring it at different settings to see if i like it more, but i don't want to mess anything up either. i can't find any info on it so i figured i would ask here. thanks a lot!