Yes the finer the ballance the better it runs in low light conditions. In particular its ability to self start.
I also posted another caveat in my thread - if you didn't pick up on it, I've repeated it below.
As I metioned previously, ballance is about the magnetic suspended centre rather than the mechanical centre. They should be the same but in an imperfect world they won't be.
If you leave the motor stopped (in the dark) and magnetically suspended, when you next try to run it its slightly out of ballance again and will not self-start in low light conditions.
My speculation here is that the magnetic field of the rotor magnets becomes displaced slightly from standing in one position. The resutlant shift the the magnetic centreline throws its fine ballance out of whack.
Running the motor for 30 minutes to an hour at moderate rpm's resets the field back to normal and ballance and low light running is restored.
Lessons :-
1) Store the rotor off its cradle when not running.
2) If it has been standing don't attempt a high speed "sunlight" run straight away - it will likely wobble itself off and away.
"Run it in" first.
Ken
