v4 restores the 3-bit Q-axis structure (c₁=isospin, c₂c₃=color). Key improvements: (1) Chirality selection rule χ=sign ( (-1) ^c₁·kₜ) derived without additional assumptions (§6. 5), (2) δkH sign derived from standing wave properties (κ=1, kₜ=0, S³-filling baseline) rather than assumed (§8. 2), (3) Lepton axis rearrangement with explicit Q values (e⁻: Q=4, ν: Q=0) (§6. 7).
Noriaki Kihara (Sat,) studied this question.