It continues...
I decided to rebuild the CD and make some improvements... I made the decision to discontinue the carbon fiber motor mount, not because it flexed, but because the resin
started to melt when the motor got a little hot... it was also very difficult to tighten the screws that held motor as the carbon would compress so much, they would get
loose again... as a result, I lost two pinions
... I also swapped out the metal spur for a nylon one. The CD now feels a lot more solid with the changes.
A few photos of the rebuild....
I did a small test after getting everything together and it seems to be working... The batts were not fully charged, so I'm not yet sure how well the fix worked.