RE: Spinners
Dave - a lil bondo shoudl buff that right out. :-)
I have a friend have the backplate on an aluminum spinner come to pieces and send shrapnel everywhere at high RPM on the first runup after being installed right out of the package.
Examination of the parts seemed to indicate that the backplate was made of a cast aluminum instead of a milled or machined type construction from bar stock. He called the out of town hobbyshop and explained, and the guy running the shop replaced the spinner with a new Tru-Turn no cost to him, even theough there was over $10 in price difference. He said he had bought the cheaper spinners from a generic distributor and was going to send them all back after that.
Since then I make sure that my spinners are described by the manufacturer as a machined, or spun aluminum construction.