I just recently purchased a Savage XS RTR. After a couple runs I had issues with no power at times.
I have since figured out that the B connector from the Flux brushless motor is smaller in diameter compared to A and C.
They are 4mm bullet connectors and should fit snug in the ESC. My B connector does not. It easily slides out and that is what has stopped my truck after a jump or even sharp turns.
Not sure how to address this issue