I don't think he's interested in the technical details
harmonics SOUND very different with different pickups
that's a fact
for some reason, the "easiest" pickup for pinch harmonics I had was the holy diver, and I had the miracle man, cold sweat, emgs and at least 10 other pickups in that same guitar
the diver harmonics sounds louder, fatter and clearer than everything else
it was also more prone to feedback than the others, though
the miracle man pinch harmonics sounded a bit thin and spikey at low bedroom volumes, but sounded huge and clear at band volume
cold sweat has a thinner pinch harmonic tone, less in your face than the diver and miracle man
very "dimebaggish", instead of the modern fat harmonics of the other two
in another les paul, I get easier harmonics from the cold sweat than I got from the nailbomb
my technique didn't change at all