Was there any real variation between the weights of 1 oz of different liquid
that you could use?
Margin of error on such a small sample only gets multiplied if you extrapolate
from it. Measuring a full litre, then dividing (like you did first) is in fact
a much more rigourous way to get a result.
But still, was there ANY difference between liquors that you could detect with
domestic equipment?
.dan.