The blue CNC head is friggin' sweet...looking.
Looks a lot better and cooler than the silver one that I've seen. (I think it's the one pwr of cheese has)
I also would like to hear about how it performs.
My immdiate concerns would be the weight differences from the stock (although with the lipos it may not matter as much) and can you get replacement CNC parts for it? (not that anyone would need them...well...I would

)
That with the plastiblades or the CF blades would make for a pretty durable head, but then you might need a titanium main shaft to fully survive any crack ups!!