I think I am going to have to pull out of Bristol.

Tried resoldering the BEC wire on the weapon ESC - no dice. So I put in the Sabretooth controller, that worked but only one of the two drive motors work. I pulled the new ESCs from the motors and put the original Sabretooth controller back in. Again, the same side spins, the other does not. Pulled the motor, redid the soldering on the motor, nothing. Took the motor, plugged it into a good battery, nothing.

To say I am disappointed is an understatement. I'll have another go tomorrow when I've got a clearer head on this but I am elsewhere over the weekend and the deadline to get this shown to be mobile is Sunday. So yeah...