[Spridgets] Rotor quality problems

[Timothy H. Collins]

I don't understand why you guys experience "out-of-the-box" rotor 
failures. Just how do they fail? A rotor is a small lump of plastic 
with a bit of metal. I understand a part built incorrectly, or wear 
after some number of thousands of miles, but how do they fail OOTBox? 
The electricity "should" follow the path of least resistance which 
should be through the metal parts rather than through the plastic. 
Are you really saying that they are built with poor tolerances? That 
seems odd too as if one is out of tolerance then every one of them 
should be OOTolerance. It's such a simple part. What's the failure mechanism?

Tim Collins
1966 AH Sprite