Maxamps not up to snuff?

[Mightytaco]

I have to say im a little disappointed in these maxamps 6000 packs i have. I finally got a data logger and the results suprised me! My peak amp draw on my test run with my 1/8th scale was 98amps but the voltage dropped to 10.5 volts at a couple of points! Anyone else have similar issues with theirs? i thought these were good up to a 20c discharge. Could i have a bad pack?

My setup:
Motor 8xl
Gearing: 14/46
Batts: 2x 2cell 6000mah packs in series.
controller: MGM 16018 in "race mode"