Im taking it that by lowering the brace you mean shorten it. Why do you want to do that? But anyways....to answer your question there are more than one way. One way is to untwist the string a bit, but this wil also add a little more draw weight and add a little more to the draw length also. You can add twist to the buss cable and get the same thing. Either way your gonna increase poundage and draw length as well. Personally I wouldnt recomend doing this. Ive been there and done that and i will never try it again. In my case i did it to gain a little more draw length.