I have made this type of thing before but never been entirely happy with the tone-also the magnets, all 12 of them, play hell with the strings epsically if you've got them RWRP on one coil for humbucking effect.They're also a real pain to make as getting the Strat coils, whcih are smaller than humbucker coils in width, to sit right onto the baseplate is a nightmare.
what about winding them onto a humbucker bobbin?
like, i'd send you a humbucker and you just rewing it, one part to trilogy specs and the other to IT specs.
but yea.. thinking about it, the close proximity of the two coils and their respective magnets would create one massive, massive magnetic field and in such, fiddle with the other pickups magnetic field and its output and voicing too.
not to mention the immense pull on the strings.
ok.. LOL, what about just one? haha. a trilogy wired on one of the bobbins and a dummy coil next to it. that would work ok, no?