I am looking at picking up a fade red supertec. The draw length is 28". I have heard that the draw length tends to run long on the spirals. In other words a 28" draw might actually be 28-1/2'' to 28-3/4. Does anyone know if this is true. I shoot 29" and I'm wondering if with my release and a string loop, I just might get there without having to buy cams. Thanks.