I've only ever used a split PG in one guitar, and never by itself. In that guitar, I have a PGn and a CC bridge. The split positions use one coil from each humbucker and they are magical together.
You're probably familiar with the wiring scheme since it has been discussed on here a number of times. IMO, the Pearly Gates is a perfect choice for the neck position with that wiring since it is bright, detailed and sensitive whether split (with another coil) or by itself in humbucker mode.
Either way, it wouldn't hurt to try splits in your guitar. Even if you don't like a solo PG split, you may love it when combined with another pickup. And.....you already have to wire the guitar so you might as well try it while you're in there.