Depends on the wood and how warm you like your neck PU's. For Gibson-design guitars, Phat CatN's can be pretty warm and rounded, too warm for me with the stock magnets (and I'm a blues/classic rock player).
For the kind of music you're playing the 500T/496R set isn't a particularly good choice. Those are ceramic hard rock/metal PU's. If I had to keep one of those PU's, I'd put the 496R in the bridge and an A2P or '59 in the neck. But my first choice would be to sell the stock PU's and put in a set of PAF's, like A2P's or '59's.