When they tune your bike, they trim the fuel and possibly ignition at each throttle position from 0 to wot over the full range of RPM. This tunes for all possible loads on the engine. If using tuneecu, they'd have to do this on the L and F tables. With a Power Commander, it takes whatever it gets from whatever table is controlling the fuel and either adds or subtracts fuel. The printout you get is just for one throttle position - 100%, which gives the max HP and torque. There was a guy from the UK who had free access to a dyno and did all kinds of messing around with his T-Bird. He posted dyno charts for a bunch of different throttle positions. At lower TP, the power is less. For racing, you want the max power at the high end. For putting around town, it also needs to be smooth at the low end.