Hey Gutter ball.......I couldn't agree more with your battery experiment results.........Iv'e been maintenence zapping on the dcx 3300 and dead shorting most of my packs for over a year now, with nothing but positive results all the way around.......especially with lowering the internal resistance(even on brand new packs).......try putting your GFX on the long lockout setting......that should take care of your error while charging a pack thats yet to re-bound from a long dead short or one thats just really low as you mentioned.......
berNardLee.......maintenence zapping your cells right after you disconnect the short is the best way to have your cells as close to zero as possible......the longer you wait, the more the cells will rebound to 1.2 volts give or take.......not what you want