MambaMax ESC quirk

[BrianG]

I was goofing off with my Mamba powered jato tonight when I noticed an odd thing. If I go forward, brake, and then go backwards, it works fine. However, if I go backwards, brake gently, and then try to go forward with medium gradual throttle, I get tons of cogging. I have to go to neutral, then add the throttle and it goes fine with no cogging. Also, it does not do this all the time, just once in a while. At first I thought it was just a matter of the ESC not being able to read the rotor position, but how would that be different from when it first starts out? Has anyone else seen this?

For those who don't know; This is on a Jato: spur=54T, pinion=22T, total gear ratio=9.63, 8.4v 2S2P 5.8Ah emoli pack, 4.7lb truck fully loaded.