Yeah, If I were you I would find some sort of measured container that goes
down to a 1/4 oz and test yourself by pouring into a normal, unmeasured glass,
then pouring it into the measured container to see how you did and calibrate
yourself from there. You could always buy an exacto pour, which I think is the
best tool for learning how to pour accurately, but thatīll set you back about
$80.
Cheers!
Josh @ BarSim
www.barsim.com
BarSim - The ultimate bartending simulation