someone asked about the pro 2k rotor head.

"how do you think those machines would respond if you stuck a pro 2 metal head on them, any different?"

I have one and you can see a picture here.

http://home.att.net/~jnrmachine/furyall_metalhead.jpg

Is it better?

yeah, but it is not worth the price. The stock fury head is fine and does not need to be replaced. The best upgrade that the rotor has is the metal head button. The metal button is smooth and it is easier to stop my blades, but this does not improve flight. The rotor also has better bell mixers and larger thrust bearings. I like this head better, but it is not worth it. There is only a slight imprvement. There was a bigger performance difference with digital servos.