Interesting , mine let go right after a sustained high speed run . With the extreme tall gearing one would think it would be easier on the flywheels.
Let me clarify, I think that the abuse of using the brakes in the air causes them to let go quicker. Mine has always died on me when either powering out of a turn or on a high speed straight like you mentioned. How are they coming by the way? I have the box ready to go, just have to get to the post office. What kind of price are we talking for these also? I will probably need 3 to be safe. Thanks again.