[J57ltr]

I don't see any problems with your data, the more amps you pull the more the voltage drops. That's a lot of amps and there is no way that the voltage is going to stay at the same level. I see a 4S A123 pack drop to 6 volts @ 175 amps. Heck even on my 60 amp power supply I test amplifiers with drop voltage in short bursts 2-3 volts @ 35 amps or so, that's just the way it is. A goes up V goes down. Is it going to hurt your batteries? You haven't exceeded the 30C of the battery so I would doubt it. Your run just looks like you were just doing a few high speed runs. I don't think your eagle tree is an issue at all. I have strapped my Fluke meter set to record and gotton the same voltage values as my eagletree, and they both have about the same sample rate 100ms.

Jeff