I'v been tempted to borrow the analytical scales from my schools undergrad chemistry labs. They weigh to 5 decimal point precision (so youd have something like 1.09237g possible) and have a solid lexan case over the top which slides closed so that air currents dont throw off your measurements!

nice work on the free scales, although i should warn you to beware of karma. dont go crying when somebody steals some of your shit one day.