I know you are supposed to shoot 5 grains per pound (unless you have the new barnsdale limbs or w/e). The reason is so the limbs don't absorb so much energy and stress and crack. But, what if you have an STS? Would this allow you to shoot a lighter arrow, let's say, a 300 gr arrow at 70 lbs, and not worry about "dry firing" or whatever you want to call it. I mean, the STS would stop the string and absorb a lot of the energy. In essence, the STS acts like a big arrow that's too heavy to shoot (or just won't move).

I don't intend on doing this, but I was thinking about it and I didn't really know.

thanks.