Dude , you can't call every music that's played with classical music theory (scales , modes , arps) Neo-Classical , or else we'd say that Vai,Angelo,Friedman,petrucci,and others Neo-Classical too for using these stuff I mentioned.
I believe the best example of Neo-Classical would be Yngwie Malmsteen.

Jason Becker (& Marty Friedman) is very far from being compared to Malmsteen's style , he plays the most complex sweeps ever , exotic scales , some pentatonic too , wierd stuff and dissonance as well ... He's too versatile to be called Neo-Classic.