For what it's worth, I've always heard that humbuckers can't fully emulate the sound of a Strat pickup because the differences in design between the two.
On a Strat pickup, the polepieces themselves are magnets, whereas on a humbucker (at least a Gibson style humbucker and I think most designs offered by, say Seymour Duncan or DiMarzio) the magnets are placed under the plastic bobbin, seperating them physically from the polepieces themselves.
The upshot is that if you wire a coil splitter up to your humbucker, when it put it in single coil mode, it's not gonna quite sound like a Strat or Tele pickup. It perhaps gets close, but some might argue "not close enough".
Likewise, if you wire two Strat pickups up like a humbucker, it's not gonna sound quite like a PAF or a DiMarzio Super Distortion or whatever, just because of the same design differences.
Now some of the things like the Joe Bardens pickups or the various other models that fit into the space of a single coil pickup (like the Seymour Duncan Hot Rails), I'm not sure about. Depending on what design differences there are, those might sound more like a Strat pickup when it's in single coil mode, but I've never had the opportunity to try them out.