Fogle is right, there already is a preference setting to set the desired adjustments for shots & holds. Be advised that these may be found in separate places for RTs and RDs (and most surely in different places depending on what platform you use), so look carefully.
I personally have even set these values to negative numbers wherever possible, that's how annoying I found that default *BOOM* effect to be when I first started with BBox whistle

Just because you can, doesn't mean you should!
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BBox 2022 Audiophile, Mac Pro Intel, OSX 10.6.8, 800x600 (TV VGA)