I don't know about Associated's CVAs but MIP's CVDs had both stock black and shiny and the shiny CVD bones were definately stronger than the stock black ones.

I had a better time running mine this weekend...but can't wait to install the slipper basket. I have a dual fan setup on my motor (though with the 8.5 I really don't need it) and I think if I can get full power to the wheels I'll have enough umph to clear a couple set of triples in the middle of the track. Right now, I'm landing on the peak of the third jump if I hit it just right.