I just measured a full length 2018 at 32 1/4". The weight was 404 grains...rounding off to 32", dividing it comes to 12.6 grains per inch. At your draw, Big Sneaky is right there at 360 grains raw shaft. Add 11 grs for the insert, 22 grains for the XL Broadhead adapter, 125 gr Broadhead, feathers/nock etc...you have yourself a nice hunting arrow which means quietness and good penetration.