Got some insider info...yet to prove it myself.

[Quick281]

Originally Posted by DLIT

Turns out Yamaha detuned the '09s because of people dying on motorcycles. I'll let you guys know if there's a difference tomorrow.

I am in no way doubting that a PCM swap won't increase power, but this being the reasoning seems absurd. Who at Yamaha thought that such a small detune would save lives? Sportbikes and saving lives can't be on the same side.