For Science:
The Side Effects on the Janus has the same layout as other One Drop Side Effects.
(Left) Janus, (Center) Flat One Drop, (Right) Spike One Drop
The reason the Janus can accept the half spec with SE is the bearing seat is shallower (Spacer sticks up higher).
The Deep State the Bearing sits Lower into the Half.
So in the Deep State/Deeper State, spacers are required for clearence between the halves and Bearing/Spacer. And the Axel in the side effects needs to be shortened so that the Two Side effects touch. As noted: Axels are thread locked into one of the Side effects or one of the halves of the Deeper State.
D size Bearing Blanks do not fit onto these side effects.