We are doing intensive on-track testing with our engineer this coming week to settle down the firmware for production release of the Vtrax10 and Vtrax10R. All the final steps are coming together now. Hopefully they all go together smoothly

You're correct, the manual does say to remove it through the front. This is a revised method to protect the sensor board better. We will make a running change to the manual. Be careful not to damage the protective rubber gasket when removing and installing the sensor unit.

One method I like to use is remove both the front cap and plastic timing cap. I leave the sensor board in place and gently insert the rotor through the front of the motor. Then I site through the rear bearing and use a .050" wrench to align the shaft without damaging the board. Our rotor shafts are CNC machined with a small hole in both ends; they can really assist with bearing alignment.