Hangtime,
The post probably indicates that I am also battery challenged. It will take a while to dissect the information.
In the meantime a few questions.
The same bird on a 4 cell pack had negative voltage spikes uncomfortably close to tolerable Rx minimums, and in fact it tripped the PCM lockouts more than once. In this setup, flown with a 5 cell sub-c pack he was ok... just. A later upgrade to a parallel 'A' cell 6v pack system showed a comfortable decrease in low voltage max spikes, he's happy and I got an education.
Sub-c and parallel A should have represented approximately the same capacity. Sub-c (1500 to 1800 ma) and A’s at 800/900ma each. Was the parallel application important or was the pack size different? The sampling must have been every 12 seconds. Do you know how the data compared to conventional voltage under load testing before and after the flight? How much battery rebound was seen when checked before the next flight? It appears that there was about a .4v loss in three minutes of flight time. What was the loss for the entire flight?
More questions later.
Bill