Viper support was quick to get back to me. They suggested the behavior was consistent with reaching the low voltage cutoff (LVC), and to make sure the lipo cells were balanced.

I did a good long balance charge last night. Tonight is club racing so I brought my meter to check the cells after each heat.

I also plan to increase the motor temp cut-off to 240F or maybe even disable it in an effort to troubleshoot the glitching.

I'll report back if I make any discovery's. Thanks for the feedback!