Well after 50 flights I decided to service my Brenner V2 CD and Neu motor and all seems well with no visible signs of wear and tear so as I stated in an earlier response I would consider telling everyone of my modification after a number of flights. Wait for it, wait for it.....Ceramic bearings! I am still averaging 2200-2500mah per Masters flight (even in the winter winds here in Tennessee) and could not be more pleased. Wish I would have thought of this 5 years ago! Regards, Everette