get a better scale.
do a reproducibility study on it. weigh the same think 10 times and check the variance. do this with at least 3 weights that span the range of the balance.
weigh yourself nekkid too
do a reproducibility study on it. weigh the same think 10 times and check the variance. do this with at least 3 weights that span the range of the balance.
weigh yourself nekkid too