I have lots of 90% halves wrapped in $10 rolls. I'd like to weigh these accurately to separate the heavier rolls from the lighter ones. A 90% half is 12.5 grams, so a full roll should weigh 250 grams.
Is a $20 gram scale you get at the head shop good enough to do this, or should I shell out for a scientific scale?
We home school so I wouldn't mind paying up for a good scale because we'll use it eventually for science labs. What scale would you recommend and what should I pay? What features do I need to look for?