Actually, Die-Hard Gold is an excellent battery!!
If you DO feel like further testing, I would try the ignition off draw (down) test at the same time you are checking the battery AT the battery and NOT at the terminals under the hood.
Set your multimeter to high amps (then, once connected as described below, move to lower scales to safely read), disconnect the negative lead from the battery, the connect one of test leads of the meter securely to the neg batt term and the other lead securely to the end of the neg cable...thus completing the circuit thru the meter. You need to do this with the doors closed, all equip off, noting that initial high readings may be found. Wait three minutes for all timed circuits/capacitors to wind down. To be ''normal'', your reading should not exceed 35 milliamps. Full text is inservice manual along with battery and cable tests.