They're both great balls, and pretty similar, although I think the Trauma is more versatile. If you drill the Trauma the same as the 2000, I think you'll get a pretty similar reaction. Following Storm's pattern of replacing previous balls with new technology, I think the Trauma was the newest version of the 2000, just like people are saying the X-Factor replaces the Trauma. The Deuce is basically a little more versatile than the El Nino Gold, and Trauma ER that it replaced, and the Reloaded I don't really understand, it looks to be incredibly similar to the El Nino 2000. They already have a particle pearl that they just put out, the EPP, but I can't imagine why they'd turn around and put out another one.
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I know Kung Fu!
I am the one, the one that will bring balance. All the pins shall be destroyed!