If you do go down the route of scales you need the ones that read to 0.01 grains not 0.1 grains. (don't confuse grains with grams)
Be aware though that some 'round' to get the weight so they are unable to display some figures... like they'll skip 8.44 but read 8.45 or 8.43.
BFTA/NSRA County Coach
CSFTA Chairman/BFTA Rep