There's always more to be found in a tune. Unfortunately, or fortunately, we're limited. The local GTR's run around with several tunes. 91 octane, 93 octane, 104 octane, 116 octane. They even have the tuner at the 1/4 and 1/2 mile events doing adjustments based on the prior run to get all their is with the atmospheric conditions. So, we have long distance or safe tunes that won't blow the engine unless we lie to the tuner. As far as the ultimate numbers they're just numbers. Who cares who has the most powerful car? I care more about who can get the most out of what they have and it's never the car with the most power. So IMO it's better to run your car then your noise maker.

Les