I note that after reforming and discharging that the capacitor's voltage will go back up (even quite fast, if it only being shorted for say up to about 20 seconds)
And guess that the longer that the cap is placed under discharge, the voltage that it rises to (when the short is removed) will be lower.
Now let's suppose that we keep the capacitor shorted for say a week. Will that un-reform (or close to un-reform) the capacitor?