Have a cue that accepts the Atlas-style headless bolts and threaded bumper. With no bolt cue is 17.6. With a 1" bolt its 17.95. How can i get it to 19oz? 2" bolt is too long(no room for bumper) and too light. Tried tungsten powder but it took up too much space. Any ideas? Will the hole need to be deepened and threaded? Thanks