[cglrcng]

We had the issue also before calibration, then we simply calibrated all of our Talons and the lights stopped flickering immediately. Look near the light on each speed controller, there is a small little button (use a small screwdriver to press & hold the button and calibrate them to the controller joystick as required ...full forward / then full reverse / then zeroed ), as listed in the speed controller documentation. See then if those lights then stop flickering.

Hope this helps.