I upgraded my Ibanez RGAIX6FM from DiMarzio Fusion Edge pups to Seymour Duncan JB/Jazz, and the difference couldn't be more astounding.
The SH2N-4C sounds crystal clear, and it's great with distortion as well. My only complaint is that the plastic had a hairline crack on arrival: otherwise, it would be 5 stars across the board.
Hugely recommend for split-coil setups!