If you're coming from true rocker I'd recommend a rocker/camber hybrid. Sounds like you're looking for something along the lines of...wait for it...Never summer. Check out the Evo or the Proto. Rocker between the feet, cambered tips for added control and pop. Both true twin, pressy, and kill the park. Also look at the Burton flying V or the Nitro Gullwing profiles. Pretty much the same thing.
Or if he wants to stick to Lib/GNU, anything with C2/C3 BTX. Maybe like a hot knife or emma P. Or GNU Metal Guru or Forest Bailey