I understand what a race ecu does. All I'm saying is the Woolrich flash and a Rapid bike tuner or PCV for the street would be the best compromise. You do not need to spend the extra money on a Stage 2 when a piggy back fueler does the adjustments on the fly and you can change sprocket ratios and whatever else with the Woolrich and revert back to stock when needed. The MCU flash does incorporate the ETV tables from the HRC ecu I assume. Why doesn't someone post their ignition and injection maps to compare them to the Rapid Bike data? I wish people who share more data to see what is really going on. My friends have RSV4 and attained their flashes for free through the generosity of some racer dude in Europe.