Did some mop-up this morning. Things seem stable enough so far.
Removed the aluminum casings from the two swollen modules, not because I really wanted to handle them, but in the full light with close examination I can see that there is some tearing of the plastic containment pouch on some of the cells where they physically attach to steel bushings that contain the through bolts. Removing the casings and bushings allows the cell pouches to expand away from one another somewhat and eliminates the pinching that was evident at the "bottom" of the cells (end opposite of the terminals). No tearing of the interior foil-appearing pouch is evident. No heat to speak detectable by touch.
The swollen cells have recovered some of their voltage after my discharging session yesterday. The cells that were experiencing self-discharge are now siting at 0.5V after being down to 0.1V during discharging and the healthy cells in the same modules went from about 0.6V during discharge to 2.5+V after sitting overnight. Discharge current was never more than 5A on the healthy cells. This recovery makes me wonder if I should just leave them alone as-is and stop trying to make the cells completely dead flat. That's kind of what started this angst yesterday to begin with.
The remaining 8 "good" modules have individual cell pairs at 3.77 - 3.78V. I'll be using this as the benchmark to monitor health for a while until I'm comfortable with their survival of this whole event.
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