unfortunately I dont have a sensative enough scale either, so i just divided 100 mg up into 20 equal piles at about 5 mg per pile, then put each pile in its own capsule. I used a 10x magnifying lense and a ruler to make sure the piles were as evenly sized as possible. While I know this isn't a whole lot better than eyeballing it, its the best i can do untill i get a better scale.