It has been my finding that the digitals can be a little 'finicky' from time to time. And you can fuck the weigh pad very easily. At least with the balance scales They will give the same consistency of acuracy forever.
I personally use a gunpowder scale and just convert the grains into grams. this of course is pretty much the most accurate scale you can use. As for capacity, 10 grams is a lot, keeping in mind that most capsule filling machines have less than 300 caps per go. Thats more than enough capacity to weigh out 25 mg per cap or whatever, and you can just weigh out your filler if need be in two go arounds.