Ken,

I didn't really mean to condemn them but from my experience and you may be right about the problem being miuse of the starter but I see a lot of plastic spinners that just look awful and then they start to tear up the rubber cone in the starter. I have never used plastic because of what I've seen. I always move my prop back clockwise until it stops and not in the compression stroke and firmly place the starter cone on the spinner before I start my engines. I see many people have their props come loose because they start the engine on the compression stroke with it already right there tight on compression. Sorry if I offended you or anyone else in any way.

Gibbs