I'm not so sure this is entirley relevent, but when I dyno'd my bike using the HRC card I got the bloke to overlay it on the standard card's graph. It showed that whilst the HRC card gave more power, and delivered in a more aggresive manner, it didn't rev out as far. Once the revs reached 11.5K they dropped off rapidly. The std card had much better over-rev.

Leigh might post a recent graph of his MC28 which shows pretty much the samething.