Well, there's at least a correlation to success. I think that, at the very least, we can look at the tax cuts offered by JFK and Reagan as reasonable, because they were cutting from astronomical rates of 90% and 70%, respectively. In both cases, the system was jacked because no one is going to pay 70+% on their income when they can spend considerably less avoiding the taxes by shuffling their assets around and hiring accountants.
Now, Bush cutting taxes down from 39% to 34%, you could argue is negligible and not likely to have any longterm impact on federal revenues and fostering a positive business climate. In all three cases, JFK (on his New Freedom and Space initiatives), Reagan (on the Cold War) and Bush (on the War on Terror and Iraq), federal spending was jacked up considerably, and so the cuts were not met with spending cuts to offset them much, aside from the increased revenues as people became disincentivised to dodge high levels of income taxes.