*head explodes*
It's a '92, and the video indicates that it should be 2 way... I only 'unscrewed' it a little and appeared to get some relief, but then again, my Vampyre's neck is so straight that when the rod's slack, there's a hair of relief, so maybe it's just a stable neck.
EDIT: So, wait, if you loosen a one-way rod, it'll actually add more relief, but it'd be the neck bending under string tension that's adding the relief, as opposed to the truss rod flexing the other way adding the relief? i.e. it'll have more relief because the truss rod's not pushing in one direction as hard, as opposed to legitimately pushing it in the other direction? If I'm right (and that never happens), what's the advantage of a two-way? Is it only beneficial when a neck is so straight that there's not enough tension to bend it with the truss rod completely slack and strings applied?