Modern, warmer, louder, and faster for the shredmeister.
The Paul Gilbert Injector™ Neck Model has a modern rather than a vintage sound. The DP422 is warmer and louder (160mV output) than a typical vintage single-coil — and of course it's hum-canceling. It's also faster. The Injector Neck Model tracks high-speed solos at high gain without becoming either thin or muddy, and has a very full, well-balanced, clean sound. It has about 40% less magnet-pull than standard single-coils, and this is essential for the superior speed and dynamic range with which this pickup responds to pick attack.
Paul's setup on the guitar he played on Fuzz Universe was Injector™ Neck Model in the neck, Area 67™ in the middle and Injector™ Bridge Model in the bridge. The Injector™ is a lot louder and warmer than the Area 67™ but the combination produces varied tonal colors in the 2 and 4 positions, with the Area 67 alone providing vintage tone and the Injector Neck and Bridge for heavier sounds.