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The reforming for each section of the three cans took different amounts of time. Some were quick, others longer. I used a current limit of 3 mA while the voltage was raised from zero to the working voltage of the capacitor. Then that voltage was held while the leakage current was watched until it got down to 200uA. The voltage was then lowered to zero. That cycle was repeated by the Arduino controller (until I checked back and saw several cycles had been completed). The first cycle always took the longest with the following cycles shortening. Most of the caps reformed in less than an hour. Two of the caps were completely open, so I did not reform them. One ran for two days without reaching its working voltage with the 3mA current limit.
From what I saw with this one set of 6 capacitors (too small a sample to make any general conclusions) I think reforming power supply capacitors might be ok if you want to take the chance (due to the desire for originality) and add a fuse. For my own restorations I prefer to replace all the electrolytics, and also add the fuse.
Dave
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